summaryrefslogtreecommitdiffstats
path: root/CWRU/changelog
blob: c33023fc092eed005789f5893f6dd7fd855e7c3a (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
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
				 9/15/2016
				 ---------
[bash-4.4 released]

				   9/17
				   ----
builtins/common.c
	- display_signal_list: if 0 is supplied as an argument to kill -l,
	  display a signal-out-of-range error.  Fixes bug reported by
	  Martijn Dekker <martijn@inlv.org>

				   9/18
				   ----
print_cmd.c
	- print_heredoc_bodies: take a list of redirections, all here documents,
	  and print the here-document bodies including the ending delimiter,
	  followed by a newline
	- print_redirection_list: print the heredoc headers the first time
	  through the list of redirections so we print them in the same left-
	  to-right order they're supplied; print the bodies and delimiters with
	  print_heredoc_bodies after we print all the redirections if we're
	  not printing a list of commands (printing_connection == 0).  Fix for
	  problem reported by Isabella Parakiss <izaberina@gmail.com>
	- print_deferred_heredocs: don't print heredoc headers, since they're
	  now printed in print_redirection_list
	- print_deferred_heredocs: use print_heredoc_bodies

				   9/20
				   ----
builtins/mapfile.def
	- readarray: update usage synopsis to include -d delim.  Report and
	  fix from jhankins@homewood.k12.al.us

test.c
	- test_binop: if op[0] == '-', make sure op[1] != 0 before checking
	  op[2] or op[3].  Fixes out-of-bounds read reported by Franco
	  Costantini <franco.costantini.20@gmail.com>

parse.y
	- cond_term: if yylval.word->word[0] == '-' make sure word[1] != 0
	  before checking word[2] and calling test_unop.  Fixes out-of-bounds
	  read reported by Franco Costantini <franco.costantini.20@gmail.com>
	- make sure to check all instances of the return value of the
	  simple_command production before trying to hook redirections onto it,
	  since it can potentially return NULL.
	  Reported by Franco Costantini <franco.costantini.20@gmail.com>

				   9/21
				   ----
parse.y
	- token_is_assignment: make sure to check that the return value from
	  assignment() finds the `=' we just added at index I to avoid false
	  positives from g=g=g=g=g=g=().  Reported by Franco Costantini
	  <franco.costantini.20@gmail.com>

				   9/22
				   ----
parse.y
	- token_is_assignment: if we're not using the bash malloc (which has
	  guard bytes after the requested allocation size), use a new
	  buffer so we can make sure it's big enough to hold the current
	  token and at least two additional characters.  Reported by
	  Franco Costantini <franco.costantini.20@gmail.com>

				   9/23
				   ----
execute_command.c
	- execute_in_subshell: call without_job_control for both job control
	  and non-job-control builds to avoid waiting for last_made_pid
	  inherited from parent shell.  Related to fix from 8/4 to
	  initialize_subshell.  Fixes bug reported by Martijn Dekker
	  <martijn@inlv.org>

builtins/declare.def
	- local_builtin: allow `local --help' to work even when not executing
	  a function. Suggestion from Norm Abramovitz <norm@starkandwayne.com>

				   9/25
				   ----
builtins/printf.def
	- bexpand: if passed a null or empty string, return a newly-allocated
	  empty string (so the return value can always be freed) instead of
	  NULL.
	- printstr: if passed a null string, treat it as if it were an empty
	  string so any precision or fieldwidth arguments are handled
	  correctly.  Report from isabella parakiss <izaberina@gmail.com>

subst.c
	- skip_matched_pair: make the flags argument of 1 affect whether or
	  not backslash can quote characters in the string, so it affects
	  all quoting mechanisms

arrayfunc.c
	- unbind_array_element: now takes a third (flags) argument; flags&1
	  means to not expand an associative array index. This is only called
	  from a shell builtin context, which means the argument should have
	  already undergone word expansion, so it should be ok.  Will still
	  be a problem for uses like "unset -v 'var[$ind]'", quoted to avoid
	  globbing
	- valid_array_reference: pass second flags argument to skipsubscript;
	  still set to 0 by all callers

arrayfunc.h
	- unbind_array_element: updated prototype

builtins/set.def
	- unset_builtin: add third argument of 1 to unbind_array_element calls
	  [TEMPORARILY DISABLED]
	- unset_builtin: call valid_array_reference with second arg of 1 to
	  handle unmatched pairs of quotes and [/]

array.c
	- array_reference: optimize access locality as well as sequential
	  access by adding ability to start from last-accessed element and move
	  backwards or forwards depending on the desired index.  Inspired by
	  report from Tom McCurdy <tom.j.mccurdy@gmail.com> and followup from
	  Christian Franke <Christian.Franke@t-online.de>

variables.c
	- all_array_variables: include associative arrays, not just indexed
	  arrays.  Reported by Grisha Levit <grishalevit@gmail.com>

execute_cmd.c
	- execute_disk_command: if we're optimizing out the fork (CMD_NO_FORK),
	  decrement the shell level so we don't end up incrementing it twice.
	  We should decrement the shell level for an implicit exec like an
	  explicit one.  Reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

builtins/exec.def
	- exec_builtin: don't bother to decrement the shell level if we are
	  already in a `(command)' subshell.  Reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

lib/readline/macro.c
	- macro_level: count of macro nesting level, maintained by
	  _rl_push_executing_macro and _rl_pop_executing macro
	- _rl_with_macro_input: if current nesting level exceeds
	  MAX_MACRO_LEVEL, abort the current command line with _rl_abort_internal
	  and return to the top level.  Reported by Christian Klomp
	  <christianklomp@gmail.com>

lib/readine/history.c
	- add_history: if allocating the history list for the first time,
	  make sure the max history list size isn't so large that it will
	  cause allocation errors.  Cap it at MAX_HISTORY_INITIAL_SIZE
	  (8192).  Reported by Sean Zha <freeman_cha@hotmail.com>

jobs.c
	- wait_for: if a foreground job with job control enabled is killed by a
	  SIGINT and sourcelevel != 0, act as if we received the SIGINT so the
	  file sourcing can be terminated.  Reported by PePa
	  <peterkelly@passchier.net>

				   9/26
				   ----
subst.c
	- read_comsub: only warn once for null bytes in command substitution
	  output, instead of once for every null byte

arrayfunc.c
	- array_variable_part: now takes a `flags' argument; changed all callers
	  to initially pass 0
	- array_variable_name: now takes a `flags' argument; changed all callers
	  to initially pass 0
	- array_variable_name: pass `flags' argument to skipsubscript instead
	  of just passing 0

arrayfunc.h
	- array_variable_{name,part}: added new argument to prototypes

				   9/29
				   ----
bashline.c
	- bash_directory_completion_hook: don't bother to try and expand a
	  ${ or $( that isn't complete; expand_prompt_string will complain.
	  Fixes reports from John Passaro <john.a.passaro@gmail.com> and
	  Valentin Bajrami <valentin.bajrami@gmail.com>

lib/readline/history.c
	- _hs_append_history_line: use a strategy that attempts to avoid
	  realloc copying memory to a newly-allocated block if the history
	  line we're appending to gets `too long' (currently 256 bytes).
	  We reallocate in powers of 2 starting at 512, and rely on realloc
	  not allocating a new block and copying into it if the size is the
	  same as the last call to realloc.  Addresses issue raised by
	  Hubert Schmid <h.schmid@gmx.de>

trap.h
	- check_signals: new extern declaration
	- trapped_signal_received: new extern declaration

builtins/read.def
	- read_builtin: if one of the zread* functions returns < 0 (which
	  usually only happens in Posix mode), make sure we call check_signals()
	  before eventually calling run_pending_traps() because zread() isn't
	  going to call it
	- include trap.h for correct extern functions and variable declarations

lib/sh/zread.c
	- zread: if executing a builtin, call check_signals_and_traps() for
	  backwards compatibility.  If not, call check_signals() only, because
	  we don't want to run traps during, for instance, reading command
	  substitution output.  Fixes race condition bug reported by Luiz Angelo
	  Daros de Luca <luizluca@gmail.com>

				   9/30
				   ----
subst.c
	- command_substitute: reset parse_and_execute_level to 0 in the child
	  process, since it's independent of the other parse_and_execute
	  calls.  Adds command substitution inside other parse_and_execute
	  calls optimizations to suppress forks, as suggested by
	  Martijn Dekker <martijn@inlv.org>

				   10/3
				   ----
configure.ac
	- SHOBJ_STATUS: make sure it defaults to unsupported and is substituted
	  if the shobj-conf script isn't run.  Fixes `make install' bug with
	  a minimal config reported by Andrew Tomazos <andrewtomazos@gmail.com>

				   10/5
				   ----
support/shobj-conf
	- darwin: set compatibility_version for a shared build of the readline
	  library (the standalone readline distribution shares this file) to
	  $(SHLIB_MAJOR)$(SHLIB_MINOR).  Recommendation from Max Horn
	  <max@quendi.de>

				   10/6
				   ----
array.h
	- array_first_index: new convenience define

array.c
	- ADD_AFTER: new define, complement of ADD_BEFORE
	- UNSET_LASTREF: now takes an array as an argument, prepping for move
	  of lastref pointer into the array struct
	- array_insert: check whether we are adding at the beginning of the
	  array and take a fast path if so
	- array_insert: use same strategy as array_reference to find the place
	  to insert, starting from the last-referenced element and moving
	  forward or back from there; use ADD_AFTER if moving backward
	- array_insert: if replacing an existing element, just replace the
	  value with new->value instead of the entire element
	- array_reference: short-circuit quickly if looking for an element
	  before the first assigned index
	- array_reference: if we don't find the element, leave lastref pointing
	  to the closest element under the assumption we will be assigning or
	  looking for something close
	- array_reference: take advantage of ordered indexes to short-circuit
	  when looking for element that is not set

				   10/7
				   ----
array.c
	- array_remove: short-circuit if asked to remove index after max
	  index or before first index

				   10/10
				   -----
lib/malloc/malloc.c
	- internal_realloc: if we are requesting reallocation to the same size
	  as the block's current size, short-circuit and return `mem' right
	  after doing bounds check
	- internal_realloc: if we are reducing the size of an allocation, and
	  the new size fits in the next lower bin, just keep the same block
	  and adjust the size, so we can avoid some copies

parse.y
	- set_line_mbstate: keep track of the allocated size of
	  shell_input_line_property, only request reallocation if the size
	  increases, but don't let it get too big

				   10/11
				   -----
jobs.c
	- wait_for_background_pids: make sure we wait for pid in
	  last_procsub_child since it's not found in any job -- still needs
	  more work to wait for multiple process substitutions

subst.c
	- process_substitute: if make_child fails, make sure we call
	  restore_pipeline to undo the previous save_pipeline()

				   10/15
				   -----
subst.c
	- process_substitute,command_substitute: leave subshell_level (reflected
	  as $BASH_SUBSHELL) intact for any exit trap instead of decrementing
	  it.  Suggested by Martijn Dekker <martijn@inlv.org>

builtins/evalstring.c
	- optimize_subshell_command: new function, framework for optimizing
	  out forks for command that have already forked and are executing
	  in a subshell. Not used yet

expr.c
	- readtok: if we have a post-increment or post-decrement, and the
	  previous token is not a string, check whether the previous token is
	  a number that results from a pre-increment or pre-decrement, and
	  make that an error.  Report from Conrad Hoffmann <ch@bitfehler.net>

				   10/16
				   -----
aclocal.m4
	- BASH_JOB_CONTROL_MISSING: convert from AC_TRY_RUN to AC_TRY_COMPILE
	  with existing set of preprocessor defines, so it can work when
	  cross-compiling.  Suggested by Felix Janda <felix.janda@posteo.de>

				   10/19
				   -----
variables.c
	- get_bashpid: BASHPID is no longer readonly; assignments to it are
	  just ignored.

doc/{bash.1,bashref.texi}
	- BASHPID: note that assignments are ignored and unsetting BASHPID
	  causes it to lose its special properties

				   10/28
				   -----
builtins/pushd.def
	- popd_builtin: make sure to check the normalized stack offset
	  (i.e., negatives counting back from the end of the stack) is within
	  bounds before trying to free that stack entry.  Report from
	  Fernando Muñoz <fernando@null-life.com>

lib/readline/histfile.c
	- chown: protect calls with HAVE_CHOWN.  Fixes for MinGW{64,32} from
	  J. Peter Mugaas <jpmugaas@suddenlink.net>

lib/readline/colors.c
	- S_ISDIR: add define if missing
	- S_ISUID, S_ISGID, S_ISLNK, S_ISSOCK: don't use unless defined.
	  Fixes for MinGW{64,32} from J. Peter Mugaas <jpmugaas@suddenlink.net>

bashhist.c
	- current_command_line_comment: set to the most recent line in a
	  possibly multi-line command that contains a shell comment; set in
	  maybe_add_history and bash_add_history to either the current
	  command number or -2
	- maybe_add_history: set current_command_line_comment for first line
	  of command
	- bash_add_history: chars_to_add set to "\n" if the current command line
	  is one greater than the previous line containing a comment
	  (current_command_line_comment).  Fixes complaint from back in
	  January, 2016 from Dave Rutherford <dave@evilpettingzoo.com>

array.h
	- lastref: move last-referenced pointer into each array struct, so all
	  arrays can have reference locality

array.c
	- array_create: set lastref element to 0
	- array_copy: if copying the lastref in array a, set the new lastref
	  in the copy to the same element
	- IS_LASTREF, LASTREF_START, LASTREF, INVALIDATE_LASTREF, SET_LASTREF,
	  UNSET_LASTREF: change to use new array `lastref' member

pathexp.c
	- quote_string_for_globbing: if quoting for a regexp, make sure to
	  skip and copy a leading `^' in a bracket expression, and skip and
	  copy a subsequent `]' (after an optional `^'), so that leading
	  bracket doesn't close the bracket expression.  Report from
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/29
				   -----
subst.c
	- extract_delimited_string: add calls to CHECK_STRING_OVERRUN for
	  $( inside $((, nested OPENERs, nested ALT_OPENERs, and backquotes
	- skip_to_delim: add calls to CHECK_STRING_OVERRUN for $(, ${,
	  process substitution
	- extract_dollar_brace_string: add calls to CHECK_STRING_OVERRUN for
	  $(
	- extract_dollar_brace_string: use skipsubscript to skip over the
	  array subscript in ${var[sub]} (non-quoted case uses string_extract,
	  which already uses skipsubscript).  Tagged for bash-5.0

				   10/30
				   -----
variables.c
	- EPOCHSECONDS: new dynamic variable, time in seconds since Unix
	  epoch; assignments are ignored.  Can be used on systems where
	  strftime() doesn't support '%s'
	- EPOCHREALTIME: new dynamic variable, time in seconds since Unix
	  epoch with microsecond granularity

doc/{bash.1,bashref.texi}
	- EPOCHSECONDS documentation
	- EPOCHREALTIME documentation

execute_cmd.c
	- decpoint: moved to locale.c, renamed locale_decpoint; changed callers

{bashintl,externs}.h
	- locale_decpoint: extern declaration or #define if support for
	  localeconv() not there

				   10/31
				   -----
lib/malloc/malloc.c
	- posix_memalign: add new posix-mandated interface

examples/loadables/rm.c
	- rm: minimal loadable builtin, removes files and directories, only
	  handles -r and -f options.  Original from Tim Ruehsen
	  <tim.ruehsen@gmx.de>, heavily rewritten for inclusion as loadable

examples/loadables/Makefile.in
	- rm: add rules to build rm as one of the `other' targets

examples/loadables/stat.c
	- stat: new loadable builtin that takes a filename and loads the info
	  returned by stat(2) into an associative array specified by the -A
	  argument (default STAT)

				   11/1
				   ----
variables.c
	- BASH_ARGV0: new dynamic variable, returns $0 on reference and sets
	  $0 on assignment.  From a suggestion from  Rocky Bernstein <rocky@gnu.org>
	  a few years ago

doc/{bash.1,bashref.texi}
	- BASH_ARGV0: document

				   11/2
				   ----
lib/glob/sm_loop.c
	- parse_collsym: make sure to not return an out-of-bounds read if a
	  collating symbol is unterminated.  Fixes OOB read reported by
	  Jerzy Kramarz <op7ica@gmail.com>
	- brackmatch: after incrementing p, before checking whether it's a
	  character range, check whether *p was NULL before the increment
	  and short-circuit the bracket expression if it is

jobs.c
	- discard_last_procsub_child: new function, safely discards
	  last_procsub_child and sets it to NULL

subst.c
	- process_substitute: call discard_last_procsub_child instead of
	  calling discard_pipeline directly.  Fixes bug reported by
	  Christian Weisgerber <naddy@mips.inka.de>

				   11/3
				   ----
shell.h
	- EX_DISKFALLBACK: new special return status available to builtins;
	  means to attempt to execute a disk command with the same name as
	  the builtin

examples/loadables/rm.c
	- if we see the -i option, return EX_DISKFALLBACK

execute_cmd.c
	- execute_simple_command: if executing a builtin returns EX_DISKFALLBACK,
	  try running execute_disk_command instead 

bashline.c
	- shell_expand_line: use expand_word to expand the readline line
	  buffer, which allows us to pass flags with the word. If a numeric
	  argument is supplied, do not perform quote removal (pass
	  Q_HERE_DOCUMENT since here-doc quoting does the right thing) and
	  do not perform command or process subsitution.  From a suggestion
	  by Dabrien 'Dabe' Murphy <dabe@dabe.com> based on an old bug-bash
	  discussion

subst.c
	- expand_word_internal: note that we have added a quoted IFS char to
	  istring by setting sentinel has_quoted_ifs.  Usually we only add
	  one if we are not going to be performing word splitting, but we
	  will not perform word splitting if there's no expansion, so we need
	  to take care of that case
	- expand_word_internal: when performing final word split, if there are
	  no expansions but has_quoted_ifs is non-zero, call remove_quoted_ifs()
	  to remove any quoted ifs characters we added while processing
	- remove_quoted_ifs: new function, removes CTLESC chars preceding
	  (single-byte) chars in IFS. Used when we are not performing word
	  splitting.  Fixes bug reported by Martijn Dekker <martijn@inlv.org>

				   11/4
				   ----
lib/readline/macro.c
	- _rl_peek_macro_key: return the next character from the current
	  keyboard macro; the next character from the `next' keyboard macro,
	  if there is one, if at the end of the current macro; or 0 to
	  indicate that we are at the end of a keyboard macro sequence

lib/readline/rlprivate.h
	- _rl_peek_macro_key: extern declaration

lib/readline/readline.c
	- _rl_dispatch_subseq: add test for ESC at the end of a keyboard macro,
	  which should cause the keyboard timeout for ESC to kick in.  The
	  previous test didn't run the timeout code if executing from a macro,
	  even if we had read the last character of the macro.  Fixes bug
	  reported by Clark Wang <clarkw@vmware.com>

lib/glob/sm_loop.c
	- GMATCH: allow trailing backslash in pattern to explicitly match a
	  backslash that is the last character in the string.  Bug report from
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   11/5
				   ----
builtins/common.c
	- display_signal_list: if displaying a signal name corresponding to an
	  exit status > 128, don't display the SIG prefix at all.  Old code
	  made displaying the SIG prefix dependent on JOB_CONTROL define.
	  Report and fix from Martijn Dekker <martijn@inlv.org>

execute_cmd.c
	- execute_subshell_builtin_or_function: call without_job_control even
	  if JOB_CONTROL is not defined. Similar to fix from 9/23.
	  Report from Martijn Dekker <martijn@inlv.org>

execute_cmd.c
	- execute_simple_command: free memory allocated and passed to
	  make_child in the child process if JOB_CONTROL is defined
	- execute_command_internal: free memory allocated and passed to
	  make_child in the child process created to run a () subshell or a
	  compound command within a pipeline if JOB_CONTROL is defined
	- execute_coproc: free memory allocated and passed to make_child in
	  the child process if JOB_CONTROL is defined
	- execute_disk_command: free memory allocated and passed to
	  make_child in the child process if JOB_CONTROL is defined.  This
	  series of fixes is the result of reports from
	  Eduardo A. Bustamante López <dualbus@gmail.com>

				   11/6
				   ----
lib/sh/unicode.c
	- u32toutf16: fix to prevent outputting broken surrogate pairs for
	  Japanese locales (ja_JP.UTF-8) on cygwin (which uses UTF-16 natively).
	  Report and fix from Koichi MURASE <myoga.murase@gmail.com>

builtins/trap.def
	- trap_builtin: if OP is `-' (revert), set the SIGINT signal handler
	  to sigint_sighandler if the shell is interactive and sourcing a
	  file (interactive_shell && sourcelevel) or running a trap
	  (interactive_shell && running_trap) even if it's not currently
	  interactive.  Report from Martijn Dekker <martijn@inlv.org>

builtins/read.def
	- check for and read multibyte characters in all cases, not just when
	  we are reading a specific number of characters, as long as
	  mb_cur_max > 1

subst.c
	- expand_word_internal: some improvements to code that converts istring
	  into a WORD_LIST * to avoid multiple allocations and copies of
	  istring, which is already malloc'ed memory -- reduce number of malloc
	  and free calls

test.c
	- unary_test: make sure if we test -v array[@] or array[*] that we
	  free the return value from array_value

				   11/8
				   ----
expr.c
	- expcond: make sure to set `noeval' before reading tokens depending on
	  the result of the conditional test, since readtok() can evaluate
	  identifiers (and recursively those containing expressions).  Report
	  and fix from Koichi MURASE <myoga.murase@gmail.com>

builtins/evalstring.c
	- should_suppress_fork: make sure to check for traps on EXIT and
	  ERR, since any_signals_trapped() only checks for `real' signals,
	  not the fake shell ones.  Fixes bug reported by Werner Fink
	  <werner@suse.de>
	- optimize_subshell_command: ditto

				   11/9
				   ----
eval.c
	- reader_loop: change so that we don't reset the SIGINT handler every
	  time through the command loop in an interactive shell if the signal
	  is trapped (as the comment noted).  Reported by Report from Martijn
	  Dekker <martijn@inlv.org>

subst.c
	- parameter_brace_{patsub,remove_pattern,transform,casemod}: save and
	  restore this_command_name while temporarily setting it for use in
	  error messages.  Fixes use-after-free error reported by
	  Jerzy Kramarz <op7ica@gmail.com>
	- string_extract_verbatim: make sure when we increment i by 2 due to
	  a CTLESC or CTLESC-CTLNUL that we don't read past the end of the
	  string. This can happen if the string ends with an odd number of
	  CTLESC chars. Fixes oob-read error reported by
	  Jerzy Kramarz <op7ica@gmail.com>

				   11/11
				   -----
configure.ac,aclocal.m4
	- BASH_FUNC_SBRK: make sure sbrk actually works, instead of being just
	  a stub function like on several Linux distributions

lib/malloc/malloc.c
	- malloc_usable_size: return the maximum number of bytes available for
	  a particular memory allocation (size of block allocated for it)

				   11/12
				   -----
configure.ac
	- changes to make --enable-profiling work on Linux (-pg, no static link,
	  no -static in LDFLAGS)

Makefile.in
	- changes to make --enable-profiling work on Linux (take
	  ${PROFILE_FLAGS} out of  BASE_CCFLAGS, add to CCFLAGS instead; add
	  BASE_LDFLAGS define that doesn't include -pg or -static; use
	  BASE_LDFLAGS in LDFLAGS; move ${PROFILE_FLAGS} and ${STATIC_LD} to
	  LDFLAGS)

tests/run-gprof
	- changes to make profiling test suite with gprof work on Linux (set
	  GMON_OUT_PREFIX to handle multiple profiled processes per test;
	  change default filename to gmon.out from bash.gmon; look for
	  gprof output files in ${TMPDIR} instead of /tmp; handle multiple
	  profiling files starting with $GMON_OUT_PREFIX)

locale.c
	- locale_isutf8: use locale_charset() if it's available and nl_langinfo
	  isn't
	- locale_isutf8: add code to parse a locale specification and determine
	  whether the encoding is UTF-8 (or utf8) in the absence of
	  nl_langinfo and locale_charset
	- set_default_locale: make sure to set locale_utf8locale early on
	- locale_utf8locale: set via call to locale_isutf8 wherever LANG,
	  LC_ALL, or LC_CTYPE is set

				   11/13
				   -----
lib/readline/display.c
	- rl_redisplay: handle report of potential integer overflow in
	  horizontal display mode from Mateusz Lenik <mlen@mlen.pl>

lib/sh/mbschr.c
	- mbschr: if in a UTF-8 locale (locale_utf8locale) and we are looking
	  for an ASCII character, use (essentially) strchr as a shortcut

lib/sh/shmbchar.c
	- utf8_{mbstrlen,mblen,mbsmbchar,mbsnlen}: UTF-8-specific replacement
	  functions (should also be able to use utf8_mblen in subst.c:
	  string_extract_verbatim)
	- mbsmbchar: if locale_utf8locale is true, call utf8_mbsmbchar
	- mbsmbchar: in UTF-8 locale, use utf8_mblen instead of mbrlen (not
	  used if earlier shortcut taken)

lib/sh/unicode.c
	- u32cconv: don't use nl_langinfo early to call u32toutf8()
	- u32cconv: use locale_utf8locale to set utf8locale
	- u32cconv: when initializing (u32init == 0), use locale_charset, then
	  nl_langinfo, then stub_charset to determine the charset
	- u32cconv: even if we don't have iconv, if locale_utf8locale is non-
	  zero, return u32toutf8

				   11/15
				   -----
lib/readline/nls.c
	- _rl_init_locale: new function, split off code that determines current
	  locale from _rl_init_eightbit, use it to set _rl_utf8locale

lib/readiline/rlprivate.h
	- _rl_init_locale: new extern declaration

lib/readline/readline.c
	- rl_initialize: if not initializing everything the first time, call
	  _rl_init_locale to check current locale and set _rl_utf8locale

lib/readline/text.c
	- _rl_insert_char: optimize cases where we are inserting a single-byte
	  character in a locale with multibyte characters
	- _rl_insert_char: check whether character is single byte if we know
	  we are in a UTF-8 locale, optimize single-byte case to avoid calls
	  to mbrtowc and memmove/memcpy

lib/readline/mbutil.c
	- _rl_char_value: if we are in a UTF-8 locale (_rl_utf8locale) and the
	  current character does not have the eighth bit set ((c & 0x80) == 0),
	  return that char without bothering to call mbrtowc
	- _rl_adjust_point: don't bother calling mbrlen if we are in a UTF-8
	  locale and the current character is not a multibyte character
	- _rl_find_next_mbchar_internal: if we are in a UTF-8 locale, use that
	  to avoid calls to mbrtowc

lib/readline/display.c
	- _rl_col_width: if in a UTF-8 locale, take advantage of that to avoid
	  calls to mbrlen and mbrtowc
	- rl_redisplay: if in a UTF-8 locale, take advantage of that to avoid
	  calls to mbrtowc

				   11/17
				   -----
lib/readline/histlib.h
	- PATTERN_SEARCH: new flag for history search interfaces, means to
	  search for a pattern as Posix specifies

lib/readline/histsearch.c
	- history_search_internal: now takes a `flags' argument instead of just
	  an `anchored' argument to accommodate PATTERN_SEARCH
	- _hs_history_patsearch: new internal interface to use when flags
	  specify PATTERN_SEARCH

lib/readline/rlprivate.h
	- SF_PATTERN: new flag for non-incremental search contexts, means to
	  treat search string as a pattern (maps to PATTERN_SEARCH)

lib/readline/search.c
	- noninc_dosearch: takes an additional `flags' argument for SF_PATTERN
	- noninc_search_from_pos: takes an additional `flags' argument for
	  SF_PATTERN
	- noninc_dosearch: pass flags argument through to noninc_search_from_pos
	- _rl_nsearch_init: if we are in vi command mode, and `pchar' (key used
	  to invoke the search) is `?' or `/', add SF_PATTERN to the flags
	  to conform to Posix spec for vi-mode editing
	- _rl_nsearch_dosearch: if cxt->sflags indicates that we should do a
	  pattern search, pass SF_PATTERN to noninc_search_from_pos
	- rl_noninc_forward_search_again: if in vi command mode and key == `N',
	  make sure flags arg passed to noninc_dosearch includes SF_PATTERN
	- rl_noninc_reverse_search_again: if in vi command mode and key == `n',
	  make sure flags arg passed to noninc_dosearch includes SF_PATTERN
	- rl_history_search_internal: pass extra flags arg to noninc_search_from_pos

				   11/18
				   -----
lib/readline/search.c
	- noninc_search_from_pos: takes a new argument, a pointer to int where
	  it stores the offset of the match in the history line (if non-NULL),
	  modified callers
	- rl_history_search_internal: pass newcol pointer to
	  noninc_search_from_pos to avoid having to recompute the match offset
	  in the matching history entry

config.h.in
	- define HAVE_FNMATCH if we have the fnmatch function (configure was
	  already checking for it)

lib/readline/histsearch.c
	- _hs_history_patsearch: transform the pattern into one ending in a
	  `*' to avoid having to perform multiple match attempts from each
	  index in the history line
	- history_search_internal: changes to handle pattern matching if
	  PATTERN_SEARCH is in the flags and HAVE_FNMATCH is defined.  This
	  makes vi-mode history searching treat the user-specified search
	  string as an fnmatch pattern, as Posix requires.  Fixes issue
	  reported by <jwdevel@gmail.com>

				   11/19
				   -----
builtins/shopt.def
	- shopt_enable_hostname_completion: only declare this if READLINE
	  defined, since that's the only time it's used.  Reported by
	  isabella parakiss <izaberina@gmail.com>

				   11/20
				   -----
builtins/common.c
	- display_signal_list: make `kill -l 0' print `EXIT', modifying change
	  from 9/17

				   11/21
				   -----
subst.c
	- expand_word_internal: when the shell encounters a backslash as the
	  last character of the string, don't try to add a '\'0' to the end
	  of the string if the string is quoted, just add a <CTLESC><\> and
	  skip to the end of string processing.  Fixes oob-read error
	  reported by Jerzy Kramarz <op7ica@gmail.com>

test.c
	- two_arguments: check argv[pos][1] before checking argv[pos][2] when
	  looking for a unary argument.  Fixes oob-read error on single `-'
	  in unary operator position reported by Jerzy Kramarz
	  <op7ica@gmail.com>
	- ANDOR: check s[1] before checking s[2] in case s[1] == end of string.
	  Fixes oob-read error reported by Jerzy Kramarz <op7ica@gmail.com>

subst.c
	- command_substitute: now takes additional flags argument, changed one
	  caller (param_expand) to pass through PF_ASSIGNRHS flag; other callers
	  pass 0
	- command_substitute: pass through flags argument to read_comsub
	- read_comsub: now takes additional new flags argument to indicate
	  whether or not the word is in a context where word splitting will
	  eventually be performed
	- read_comsub: if we are running in a context where word splitting
	  will not take place (PF_ASSIGNRHS), we read a CTLESC, and CTLESC is
	  in $IFS, add a CTLESC to make sure it gets through a round of
	  dequoting

				   11/23
				   -----
parse.y
	- xparse_dolparen: since reset_parser frees the pushed string list,
	  and this is supposed to be a separate parsing context, we need to
	  save and restore pushed_string_list around the call to parse_string
	  and reset_parser.  Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

bashhist.h
	- HISTEXPAND_DEFAULT: default value of history_expansion, moved here
	  from flags.c

flags.[ch]
	- histexp_flag: new variable, this is what set -H/set -o histexpand
	  sets; history_expansion set to value of this variable; defaults to 0
	- history_expansion: now set to HISTEXPAND_DEFAULT

bashhist.c
	- bash_history_reinit: if interact == 0, set history_expansion to the
	  value of histexp_flag, to allow -H option to enable history
	  expansion
	- bash_history_reinit: if interact == 0, make sure
	  history_expansion_inhibited is set opposite of histexp_flag, so
	  enabling history expansion with -H invocation option turns off
	  inhibited expansion. If interactive shell, we turn it off so
	  history_expansion controls whether or not history expansion takes
	  place. In practice, this function is always called with interact == 0,
	  and -c command still doesn't perform history expansion

shell.c
	- init_interactive: make sure histexp_flag and history_expansion are
	  identical in an interactive shell; allows both -H/+H option and
	  default compilation options (HISTEXPAND_DEFAULT) to work

				   11/24
				   -----
subst.c
	- get_word_from_string: take advantage of the fact that SEPARATORS is
	  always a (possibly local) copy of IFS, so build a local charmap of
	  separators and use it instead of the (cached and possibly stale)
	  ifs_cmap map and isifs macro.  Fixes bug with -N stripping leading
	  whitespace reported by Clark Wang <clarkw@vmware.com>

				   11/25
				   -----
builtins/read.def
	- read_builtin: make `i' volatile, since auto variables are technically
	  undefined after a longjmp, and a timeout on SIGALRM causes one.
	  Fix suggested by Dmitry Goncharov <dgoncharov@users.sf.net>

				   11/27
				   -----
parse.y
	- shell_getc: if we are reading input from a string, and we get the
	  ending '\0', and we are not expanding an alias, return EOF right
	  away.  It might be an eval'ed string that has a syntax error.
	  Fixes bug reported by Dan Douglas <ormaaj@gmail.com>

				   11/28
				   -----
subst.c
	- expand_word_internal: if we're expanding a quoted string containing
	  a tilde as the first character of a word, only expand the tilde if
	  we're expanding an array subscript (Q_ARRAYSUB), not if we're
	  expanding any arithmetic expression (Q_ARITH).  This fixes a
	  backwards compatibility issue with expressions like ~0 reported by
	  Bize Ma <binaryzebra@gmail.com>

subst.c
	- parameter_brace_expand_indir: if the variable is not special and
	  the indirect variable is unset (!variable where variable is unset),
	  report an error.  This is a slight incompatibility with previous
	  versions, which did not differentiate between indirecting an unset
	  variable and an indirect expansion resulting in an unset variable.
	  Fixes omission reported by otenba@protonmail.com

				   11/30
				   -----
lib/readline/doc/{rluser.texi,readline.3},doc/bash.1
	- do-uppercase-version: since this doesn't actually exist, replace it
	  with do-lowercase-version, with the caveat that do-lowercase-version
	  results in undefined behavior if bound to a character that's
	  already lowercase.  Suggested by Branden Robinson
	  <g.branden.robinson@gmail.com>

lib/readline/doc/rluser.texi
	- history-substring-search-forward: was misspelled as "substr-search";
	  ditto for search-backward

doc/bash.1
	- history-substring-search-{backward,forward}: add documentation, text
	  straight from readline.3

jobs.c
	- initialize_job_control: if the terminal's process group is valid,
	  but the shell is not the foreground process, check for terminating
	  signals (like SIGHUP, which the kernel would send if the process
	  group were orphaned) during the loop where we try to stop the shell
	  if it's not in the foreground.  Not a perfect solution; the kernel
	  might not send SIGHUP

				   12/1
				   ----
jobs.c
	- initialize_job_control: only go through the SIGTTIN loop 16 times at
	  most before deciding we're in the background and probably a member of
	  an orphaned process group; set original_pgrp to the terminal's pgrp
	  (so the eventual give_terminal_to doesn't leave the terminal in the
	  wrong pgrp); and bail on job control initialization

tests/run-all
	- unset SHELLOPTS to avoid its options `polluting' the test
	  environment.  Suggestion from Vladimir Marek
	  <Vladimir.Marek@oracle.com>

tests/execscript
	- use $PWD/exec8.sub to protect against someone who has a cd command
	  in his bashrc.  Report from  Vladimir Marek
	  <Vladimir.Marek@oracle.com> 

				   12/2
				   ----
shell.c
	- open_shell_script: call end_job_control before exiting the shell in
	  case we were run as `bash -i script' and there is a problem with
	  executing `script'.  If we don't, the terminal ends up in the wrong
	  process group.  Fix from Clark Wang <clarkw@vmware.com>

				   12/3
				   ----
parse.y
	- read_comsub: if we look for a character following a `<' and it's
	  not `<' (indicating that we don't have to read a here-document),
	  make sure we push that character back and go through the loop again
	  so we note the right word start location.  Fixes bug reported by
	  parasite parasite <42parasite@gmail.com>

subst.c
	- parameter_brace_expand_indir: clean up checks for unset variables to
	  minimize incompatibilities with previous versions

				   12/5
				   ----
lib/readline/history.c
	- add_history: don't update history_length until all of the updates to
	  the_history are complete, so history_length is always consistent.
	  Report and fix from Hong Cho <hong.cho@citrix.com>

bashline.c
	- bash_backward_shellword: fix to work better at the end of the line,
	  with multiple trailing whitespace characters.  Inspired by report
	  from Kirill Timofeev <kt97679@gmail.com>

Makefile.in
	- bashbug: use `^' as the sed delimiter instead of `%'; some compilers
	  use `%' in CFLAGS.  Report from  Vladimir Marek
	  <Vladimir.Marek@oracle.com> 

				   12/6
				   ----
test.c
	- test_unop: make sure op[1] != 0 before testing op[2]
	- term: make sure argv[pos][1] != 0 before testing argv[pos][2].  Fixes
	  oob-read reported by Jerzy Kramarz <op7ica@gmail.com>

				   12/7
				   ----
lib/glob/glob.c
	- glob_filename: assign the return value of realloc (results, ...) to
	  a temp pointer, so if realloc returns NULL, we make sure we free
	  results.  Report from Kirill Timofeev <kt97679@gmail.com>

				   12/12
				   -----
lib/sh/shquote.c
	- sh_backslash_quote: if FLAGS&2, backslash-quote other single-byte
	  characters that are in the current locale's <blank> character class

builtins/printf.def
	- printf_builtin: when processing the `%q' format, make sure to
	  backslash quote all <blank> characters by making sure that FLAGS
	  passed to sh_backslash_quote includes 2.  Fixes issue for certain
	  iso-8859-1 locales where character 160 (octal 240, hex 0xa0) is a
	  non-breaking space. Report from Stephane Chazelas
	  <stephane.chazelas@gmail.com>

lib/sh/eaccess.c
	- sh_stat: if DEV_FD_STAT_BROKEN is defined, take /dev/fd/N and turn
	  it into a stat on file descriptor N, as if /dev/fd were not
	  available.  This is the case on some old versions of SunOS.  Report
	  and patch from Dmitry Goncharov <dgoncharov@users.sf.net>

config.h.in
	- DEV_FD_STAT_BROKEN: add define

configure.ac
	- --enable-dev-fd-stat-broken: new command-line option, defines
	  DEV_FD_STAT_BROKEN if supplied at configure time

doc/bashref.texi
	- --enable-dev-fd-stat-broken: document new command-line option for
	  configure

arrayfunc.c
	- assoc_expand_once: new variable, declared here just because

arrayfunc.h
	- assoc_expand_once: extern declaration
	- AV_NOEXPAND: new flag value for the array_value family of functions:
	  means to not run associative array subscripts through word expansion

builtins/set.def
	- unset_builtin: call unbind_array_element with assoc_expand_once as
	  third arg, controls whether we expand associative array subscripts
	  (if 1, we suppress the usual expansion).  With accompanying shopt,
	  provides backwards compatible option to solve problem with quotes
	  and other characters in associative array subscripts pointed out
	  most recently by Mingye Wang (Arthur2e5) <arthur200126@gmail.com>

builtins/shopt.def
	- assoc_expand_once: new option, controls value of internal variable
	  with the same name. Currently undocumented because I'm not completely
	  sold on the name

expr.c
	- evalexp: now takes a second argument, flags. Changed all callers in
	  multiple other files (builtins/let.def,execute_cmd.c,arrayfunc.c,
	  subst.c,test.c,variables.c)

externs.h
	- EXP_EXPANDED, new flag for second argument to evalexp

builtins/let.def
	- let_builtin: add EXP_EXPANDED to flags passed to evalexp

execute_cmd.c
	- execute_arith_command: add EXP_EXPANDED to flags passed to evalexp,
	  since the command string is run through expand_words_no_vars before
	  being evaluated

expr.c
	- set expression-global variable already_expanded if flags arg to
	  evalexp contains EXP_EXPANDED
	- if assoc_expand_once option set and already_expanded flag set, pass
	  1 in flags to array_variable_part to skip over quotes and expansions
	  in the subscript
	- if those two variables set, pass AV_NOEXPAND as flag to
	  get_array_value to prevent word expansions on the subscript

arrayfunc.c
	- if flags passed to unbind_array_element includes 1, pass flag on to
	  skipsubscript so we don't expect matched quotes or process
	  expansions in the subscript
	- if flags to array_value_internal include AV_NOEXPAND, pass 1 as flag
	  to array_variable_part to pass along to skipsubscript
	- if flags to array_value_internal include AV_NOEXPAND, don't call
	  expand_assignment_string_to_string; just use the unexpanded subscript
	  to produce the key [THIS IS A WORK IN PROGRESS]

				   12/14
				   -----
subst.h
	- ASS_NOEXPAND: assignment flag that inhibits expansion of associative
	  array subscripts

variables.c
	- bind_int_variable: takes new flags arg; flags are taken from the
	  ASS_ set of assignment flags, changed callers (bashline.c, expr.c,
	  pcomplete.c)
	- bind_int_variable: if flags includes ASS_NOEXPAND, pass 1 as flag to
	  valid_array_reference and array_variable_part to pass along to
	  skipsubscript, so we don't try to skip over quoted strings in the
	  subscript
	- bind_int_variable: pass flags along to assign_array_element

variables.h
	- bind_int_variable: updated extern declaration with new flags arg

expr.c
	- expr_bind_variable: if the assoc_expand_once option is enabled, and
	  the flags to evalexp indicate that we have already run the expression
	  through word expansion, pass ASS_NOEXPAND as flag to bind_int_variable

arrayfunc.c
	- assign_array_element: if flags includes ASS_NOEXPAND, pass 1 as flag
	  to array_variable_name to pass along to skipsubscript
	- assign_array_element: if flags includes ASS_NOEXPAND, don't run an
	  associative array subscript through word expansion, just use as-is

subst.c
	- param_expand: call evalexp with EXP_EXPANDED flag for arithmetic
	  substitution because the string has already been expanded with
	  expand_arith_string

				   12/15
				   -----
builtins/read.def
	- read_builtin: use value of assoc_expand_once for valid_array_reference
	  as with other uses
	- bind_read_variable: if assoc_expand_once is set, pass ASS_NOEXPAND
	  to assign_array_element

general.c
	- assignment: instead of checking whether flags == 0 to allow a `[',
	  explicitly check for (flags&1) to disallow it.  This leaves the door
	  open for additional flag values

builtins/printf.def
	- printf_builtin: use value of assoc_expand_once for
	  valid_array_reference as with other uses
	- bind_printf_variable: if assoc_expand_once is set, pass ASS_NOEXPAND
	  to assign_array_element

				   12/16
				   -----
builtins/history.def
	- change history -d option to handle negative arguments; negative
	  arguments offset from the end of the history list (last_position + 1
	  so history -d -1 deletes the history -d command that just got
	  added).  Original patch from Piotr Grzybowski <narsil.pl@gmail.com>

doc/bash.1,lib/readline/doc/hsuser.texi
	- documented new behavior of negative offsets for `history -d'

				   12/17
				   -----
lib/readline/history.c
	- remove_history: use memmove to move the history list around instead
	  of a loop that copies pointers one at a time, similar to add_history

				   12/19
				   -----
configure.ac
	- linux: make sure PGRP_PIPE is defined unconditionally for all kernel
	  versions greater than 2.3.*

lib/readline/history.c
	- clear_history: when clearing the history, reset history_base to 1
	  (its default)
	- remove_history_range: new function, removes a set of history entries
	  and returns them all for deallocation

lib/readline/history.h
	- remove_history_range: extern declaration

				   12/20
				   -----
execute_cmd.c
	- eval_arith_for_expr: pass EXP_EXPANDED to evalexp, since we run the
	  expression through expand_words_no_vars

				   12/21
				   -----
input.c
	- b_fill_buffer: when read returns EOF or error, and we reset the
	  buffer and pointers, reset the input pointer to 0.  Fixes issue
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

				   12/22
				   -----
arrayfunc.[ch],subst.c
	- array_expand_index: added new FLAGS argument, reserved for future use,
	  changed callers


				   12/24
				   -----
variables.c
	- can_optimize_assignment,optimized_assignment: see if we can detect
	  whether or not we're trying to append a string to a string variable,
	  and optimize that using realloc/strcpy.  Based on a log-ago
	  suggestion from Aharon Robbins <arnold@skeeve.com>

				   12/27
				   -----
builtins/help.def
	- help_builtin: don't pass return value from ngettext() directly to
	  printf

				   12/28
				   -----
sig.c
	- set_signal_handler: set SA_RESTART for SIGWINCH, so window size
	  changes don't interrupt open/read/write.  Suggested by
	  Andriy Prystupa <andriy.prystupa@globallogic.com> back in 10/2016

				   12/30
				   -----
execute_cmd.c
	- coproc_pidchk: if MULTIPLE_COPROCS, call cpl_search to find coproc
	  associated with pid, don't remove it from the list with cpl_delete.
	  Just mark as dead and wait for coproc_reap/cpl_reap to take care
	  of disposing it
	- execute_coproc: NEW FEATURE: run the coproc name through word
	  expansion before creating the coproc; this allows unique coprocs
	  to be created in loops. Originally requested way back in 2012 by
	  Erik Brandsberg <ebrandsberg@juniper.net>

command.h
	- subshell_com: now has a line number member: line

make_cmd.c
	- make_subshell_command: assign current line number (line number of the
	  ending right paren) to `line' member

copy_cmd.c
	- copy_subshell_command: copy the `line' member

execute_command.c
	- execute_command_internal: when executing a user subshell (`(command)'),
	  set the line number and line number for the ERR trap from the line
	  number saved in the subshell command struct.  Fix from
	  Eduardo A. Bustamante López <dualbus@gmail.com>
	- execute_arith_command: set line number for ERR trap from line number
	  saved in the arith command struct.  Fix from
	  Eduardo A. Bustamante López <dualbus@gmail.com>
	- execute_cond_command: set line number for ERR trap from line number
	  saved in the cond command struct.  Fix from
	  Eduardo A. Bustamante López <dualbus@gmail.com>

variables.c
	- bind_variable_internal: move can_optimize_assignment call to the
	  right place

				   12/31
				   -----
variables.c
	- find_variable_nameref: treat a circular variable reference as
	  referring to a variable of that name in the global scope (for now),
	  if one exists.  PROVISIONAL change: inspired by suggestion back in
	  6/2016 by Grisha Levit <grishalevit@gmail.com>

				 1/2/2017
				 --------
{expr,general,hashcmd}.c
	- include flags.h for flag values

make_cmd.c
	- include shell.h instead of the files it includes

flags.h
	- new extern declarations for want_pending_command, read_from_stdin

subst.h
	- add extern declaration for expanding_redir, assigning_in_environment

trap.h
	- add extern declaration for running_trap

execute_cmd.h
	- added extern declarations for variables declared in execute_cmd.c,
	  changed files that declare lots of extern variables

shell.h
	- added extern declarations for variables declared in shell.c,
	  changed files that declare lots of extern variables 

parser.h
	- added extern declarations for variables declared in parse.y,
	  changed files that declare lots of extern variables 

[lots of changes to reduce the number of extern declarations in C and DEF files]

parse.y
	- xparse_dolparen: need ALIAS or DPAREN_ARITHMETIC to be defined to
	  use STRING_SAVER

				    1/3
				    ---
sig.c
	- termsig_handler: don't call end_job_control if subshell_environment
	  indicates that we're in a command or process substitution.
	  Provisional fix for bug reported by Russell King <rmk@armlinux.org.uk>

jobs.c
	- end_job_control: only attempt to give the terminal back to
	  original_pgrp if job_control != 0; don't test interactive_shell

execute_cmd.c
	- execute_disk_command: call QUIT after search_for_command, since
	  the only time QUIT gets called is when the path is actually
	  searched.  It doesn't happen for an absolute pathname.  Fix for
	  bug reported by Russell King <rmk@armlinux.org.uk>

				   1/16
				   ----
lib/glob/glob.c
	- extglob_skipname,wextglob_skipname: if we don't find a reason to
	  not skip the name in any subpattern (r returns 0 for any subpattern),
	  return 1 because we should skip the name
	- extglob_skipname,wextglob_skipname: if we don't find a reason to
	  not skip the name in any subpattern, but the first part of the extglob
	  pattern is a wildcard (`*(pat)'), check the rest of the pattern, if
	  any, to decide whether or not to skip the name. Fixes bug reported
	  by Grisha Levit <grishalevit@gmail.com>

lib/glob/glob_loop.c
	- CHAR -> GCHAR (unsigned char); change uses of CHAR to GCHAR

lib/glob/glob.c
	- wchkname -> wskipname
	- wskipname: now takes a third `flags' argument, like the other variants
	  of skipname

				   1/17
				   ----
redir.c
	- here_document_to_fd: set the file descriptor open for writing to the
	  here document to be close-on-exec.  Fixes bug reported by
	  Siteshwar Vashisht <svashisht@redhat.com>

				   1/18
				   ----
{gmisc,gm_loop}.c
	- match_pattern_char,match_pattern_wchar: moved to gm_loop.c (new file),
	  compile twice for single and wide characters as with the rest of
	  the functions
	- umatchlen,wmatchlen: ditto
	- extglob_pattern_p: move to gm_loop.c, generalize for regular and
	  wide-char versions

				   1/19
				   ----
lib/readline/complete.c
	- stat_char: fix small memory leak if stat/lstat returns -1

bashline.c
	- bash_filename_stat_hook,bash_directory_completion_hook: make sure
	  expand_prompt_string is caled wth W_NOPROCSUB flag
	- directory_exists: don't dequote the filename passed as an argument;
	  this function should never get quoted pathnames

subst.c
	- expand_word_internal: when calling expand_word_internal recursively
	  after reading a double-quoted string, make sure the W_NOCOMSUB and
	  W_NOPROCSUB flags make it to the recursive invocation.  Fixes bug
	  reported by Jens Heyens <jens.heyens@cispa.saarland>

				   1/23
				   ----
lib/readline/signals.c
	- _rl_orig_sigset: original signal mask, set and restored by
	  rl_set_signals (rl_clear_signals doesn't block signals).  If we
	  are not installing signal handlers, just save signal mask each
	  time rl_set_signals is called

lib/readline/input.c
	- rl_getc: use _rl_orig_sigmask in the call to pselect(), so we block
	  the set of signals originally blocked by the calling application.
	  Fixes bug reported by Frédéric Brière <fbriere@fbriere.net>

parse.y
	- yy_readline_get: try to unset NONBLOCK mode on readline's input
	  file descriptor before calling readline(). Inspired by report from
	  Siteshwar Vashisht <svashisht@redhat.com>

				   1/30
				   ----
parse.y
	- parse_comsub: don't unconditionally set the LEX_WASDOL flag when we
	  see a `$'; we should toggle it to accommodate things like $$.
	  Fixes bug reported by Christian Weisgerber <naddy@mips.inka.de>
	- parse_matched_pair: do the same thing with LEX_WASDOL

				    2/1
				    ---
jobs.h
	- JWAIT_PERROR,JWAIT_FORCE: new defines for the wait_for_ family of
	  functions

jobs.c
	- wait_for_job, wait_for_any_job: take new flags argument for use by
	  the wait builtin
	- wait_for_job: if JWAIT_FORCE flag supplied, loop waiting for job to
	  terminate instead of change state
	- wait_for_single_pid: if JWAIT_FORCE flag supplied, loop waiting for
	  child process to terminate instead of change state

builtins/wait.def
	- takes a new `-f' option, signifying to wait until the specified job 
	  or process terminates, instead of changes state

doc/{bash.1,bashref.texi}
	- wait: document the new -f option and its behavior when job control
	  is enabled
	- job control: add a paragraph describing how the wait builtin changes
	  behavior when job control is enabled: it returns when a job changes
	  state

				    2/2
				    ---
examples/loadables/fdflags.c
	- fdflags: new loadable builtin to set and unset file descriptor flags
	  (such as non-blocking, though bash undoes that) for descriptors bash
	  has open. Developed in consultation with Christos Zoulas
	  <christos@zoulas.com>

				    2/3
				    ---

lib/readline/text.c
	- rl_previous_screen_line: attempt to move to the same column on the
	  previous screen line of the current readline buffer by moving back
	  a number of characters equal to the screen width
	- rl_next_screen_line: attempt to move to the same column on the
	  next screen line of the current readline buffer by moving forward
	  a number of characters equal to the screen width. Both originally
	  suggested by Hans Ginzel <hans@matfyz.cz>

lib/readline/readline.h
	- rl_{next,previous}_screen_line: extern declarations

lib/readline/funmap.c
	- {next,previous}-screen-line: new bindable command names

lib/readline/doc/{rluser.texi,readline.3}
	- {next,previous}-screen-line: document behavior, including limitations

				    2/5
				    ---
lib/readline/input.c
	- rl_read_key: when reading input from a macro, make sure to return
	  the next character as an unsigned char, so we handle multibyte
	  character sequences correctly.  Report and fix from Grisha Levit
	  <grishalevit@gmail.com>

				    2/6
				    ---
shell.c
	- --pretty-print: new invocation option, currently undocumented, dumps
	  a pretty-printed version of a shell script given as an argument to
	  stdout
	- main: call pretty_print_loop() if we're in pretty-printing mode in
	  a non-interactive shell

eval.c
	- pretty_print_loop: new function, similar to reader_loop, reads
	  commands and prints them by displaying the result from
	  make_command_string()

externs.h
	- pretty_print_loop: new extern declaration

				    2/9
				    ---
doc/{bash.1,bashref.texi}
	- here strings: correct documentation to note they do not undergo
	  brace expansion. Report from Conor McCarthy <mr.spuratic@gmail.com>

				    2/9
				    ---
lib/readline/display.c
	- expand_prompt: instead of recomputing the line break offsets for
	  prompts that span multiple screen lines on every call to rl_redisplay,
	  do it here. Manage a local array local_prompt_newlines; set an offset
	  every time `physchars' hits a multiple of the screen width.  Inspired
	  by https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=843819
	- rl_redisplay: don't calculate multi-line prompt line break indices
	  here; use the values calculated by expand_prompt
	- rl_{save,restore}_prompt: save and restore local_prompt_newlines

				   2/11
				   ----
lib/readline/mbutil.c
	- _rl_find_prev_mbchar_internal: since we're traversing the string
	  from the beginning, shortcut non-multibyte characters in a UTF-8
	  locale

parse.y
	- parse_comsub: if we are parsing a here document with a quoted
	  delimiter (LEX_QUOTEDDOC), we should not remove <backslash><newline>
	  pairs from the body of the here document.  Need to add LEX_QUOTEDDOC
	  to the values in tflags when calling shell_getc.  Fixes bug reported
	  by Michael Homer <michael.homer@ecs.vuw.ac.nz>, patch was originally
	  contributed by Geir Hauge <geir.hauge@gmail.com>

				   2/15
				   ----
jobs.c
	- bgp_add: if hashed pid collides with bgpids.head index, print a
	  warning and move to the next index.  Attempt to avoid collision
	  problem reported by Graham Northup <northug@clarkson.edu>

				   2/17
				   ----
subst.c
	- process_substitute: call remove_quoted_escapes on the command string
	  like command substitution does, since the string will be run through
	  the parser again.  Fixes bug reported by David Simmons
	  <bug-bash@tmp.davidsimmons.com>

config-top.h
	- STATIC_PATH_VALUE: new config variable, undefined by default

variables.c
	- shell_initialize: if STATIC_PATH_VALUE is defined, use it to set the
	  PATH variable at shell startup, overriding the environment and any
	  value for DEFAULT_PATH_VALUE.  Based on a suggestion from
	  Lonnie Abelbeck <lonnie@abelbeck.com>

				   2/18
				   ----
shell.c
	- maybe_make_restricted: clear the hash table before making the PATH
	  variable read-only by calling stupidly_hack_special_variables.
	  Suggestion from Lonnie Abelbeck <lonnie@abelbeck.com>

subst.c
	- expand_string_for_pat: change expansion of WORD in ${param[%[%]][#[#]]word}
	  to use this new function, initially identical to
	  expand_string_for_rhs
	- getpattern: use expand_string_for_pat to expand the pattern

				   2/19
				   ----
subst.c
	- expand_string_for_rhs: now that this is only used to expand the RHS
	  of the various non-pattern ${paramOPword} expansions, set
	  expand_no_split_dollar_star depending on whether or not the entire
	  brace expansion is going to be subjected to word splitting: if it's
	  quoted or if IFS is set but null, we will not be splitting so we set
	  this to 1 and let $* expand to separate fields separated by a space.
	  This was heavily debated back in October 2014 and resulted in Posix
	  interp 888. Reported by Martijn Dekker <martijn@inlv.org>

				   2/20
				   ----
subst.c
	- expand_string_for_rhs: now takes `op' (brace expansion operator) as
	  an additional argument; changed call in parameter_brace_expand_rhs
	- expand_string_for_rhs: make sure to set expand_no_split_dollar_star
	  if `op' is `=', since we are supposed to preserve the assignment
	  statement expansion semantics on the RHS of ${param=word}

jobs.c
	- bgp_delindex: make sure to set ps->pid to NO_PID so we more
	  effectively remove it from the hash table. It shouldn't matter as
	  long as nothing in pidstat_table points to it, but better to be safe
	- bgp_delete,bgp_search: generalize previous collision detection to
	  loop detection: abort search if we are going to go back to the
	  first index we tried

				   2/21
				   ----
lib/readline/vi_mode.c
	- rl_vi_bword: if we're trying to move backward to non-whitespace
	  in a line that begins with whitespace, make sure we don't move
	  point to 0 and test memory locations before the start of the
	  buffer. Report and fix from Jason Hood <jadoxa@yahoo.com.au>

lib/readline/display.c
	- expand_prompt: if _rl_screenwith == 0, call rl_reset_screen_size to
	  initialize it. If it's still 0 after that, guess that the screen
	  width is 80 and use that to guess how many screen lines the prompt
	  consumes

lib/readline/readline.c
	- readline_internal_setup: if in emacs editing mode, and we are
	  showing the editing mode in the prompt, call _rl_reset_prompt() to
	  make sure that the updated setting of _rl_show_mode_in_prompt
	  (presumably set in an inputrc file) is reflected in the redisplay
	  performed by rl_callback_newline via readline_internal_setup.
	  Fix from Jason Hood <jadoxa@yahoo.com.au>

				   2/22
				   ----
builtins/complete.def
	- print_one_completion,print_compopts: make sure to display the
	  `nosort' and `noquote' options if they've been set for a particular
	  compspec.  Fix from Grisha Levit <grishalevit@gmail.com>

builtins/read.def
	- read_builtin: if -e is supplied, read needs to free rlbuf before
	  returning, since it uses discard_unwind_frame at that point. Bug
	  and fix from ZhangXiao <xiao.zhang@windriver.com>

execute_cmd.c
	- execute_for_command: when using a nameref as the for loop control
	  variable, make sure we check for readonly namerefs and make sure
	  that we force bind_variable to enforce restrictions on nameref
	  assignments. Fix from Grisha Levit <grishalevit@gmail.com>

				   2/23
				   ----
general.c
	- make_absolute: convert deprecated cygwin_conv_to_full_posix_path
	  to cygwin_conv_path (CCP_WIN_A_TO_POSIX, ...)

{shell,variables}.c,config-top.h
	- modify change from 2/17: rename STATIC_PATH_VALUE to RBASH_STATIC_PATH_VALUE;
	  don't use it in shell_initialize; set PATH to it just before
	  imposing restricted shell restrictions

				   2/24
				   ----
subst.c
	- expand_string_for_rhs: revert change from 2/19 concerning setting
	  expand_no_split_dollar_star so we are consistent with the Posix
	  examples. This anticipates Martijn Dekker initiating an austin
	  group discussion about this case

				   2/25
				   ----
pcomplete.c
	- gen_shell_function_matches: if COMPREPLY is an associative array,
	  don't coerce it to an indexed array, which will fail to produce any
	  matches anyway.  Report from Grisha Levit <grishalevit@gmail.com>
	- bind_comp_words: if COMP_WORDS exists as a nameref variable, ignore
	  the nameref attribute. Report from Grisha Levit
	  <grishalevit@gmail.com>

subst.c
	- parameter_brace_expand: if expand_no_split_dollar_star is set, make
	  sure chk_atstar treats ${var[*]} as quoted by passing Q_DOUBLE_QUOTES
	  as the second argument.  Fixes differing treatment of $* and ${v[*]}
	  reported by Grisha Levit <grishalevit@gmail.com>, because otherwise
	  *contains_dollar_at gets set to 1 and the word is inappropriately
	  split

				    3/1
				    ---
subst.c
	- expand_word_list_internal: if a variable assignment fails (e.g., due
	  to a readonly variable) in a non-interactive posix mode shell, don't
	  abort the shell if the assignment is being performed by the command
	  builtin, even if it's something like `command eval v=1'.  Fixes
	  RedHat bug https://bugzilla.redhat.com/show_bug.cgi?id=1389838
	  (reported by Denys Vlasenko)

				    3/3
				    ---
builtins/shopt.def
	- set_compatibility_level: make sure that changing the compatibility
	  level sets or modifies BASH_COMPAT. Fixes bug reported by
	  Stephane Chazelas <stephane.chazelas@gmail.com>

lib/glob/smatch.c
	- is_cclass: broke into two functions: is_valid_cclass and cclass_test,
	  for future expansion. No functionality change

lib/glob/sm_loop.c
	- BRACKMATCH: when testing a character against a character class name,
	  use the unfolded (original) character, since we're not performing a
	  comparison. This is what glibc does.  Fixes bug reported by
	  Lukáš Ba�inka <lukas.barinka@boxtrap.net>

				    3/4
				    ---
doc/{bash.1,bashref.texi}
	- note that the arguments to -eq and the rest of the arithmetic
	  operators are evaluated as expressions when using [[.  Report from
	  Rob la Lau <rob@ohreally.nl>


				    3/7
				    ---
lib/readline/display.c
	- update_line: completely rewrote the code that handles line wrapping
	  in the presence of multibyte/double-width characters; punts to a
	  dumb update in cases where the number of screen positions doesn't
	  match
	- update_line: in one case, where we are deleting characters from the
	  line, if we are writing a non-space into the last screen character
	  position, note that we are no longer using a space as a placeholder
	  for a line wrap where there is a multi-width character that won't
	  fit on the screen line (wrapped_line[current_line+1] = 0)

				   3/10
				   ----
lib/readline/readline.c
	- bind_arrow_keys_internal: add default key bindings for control-
	  arrow keys, suggested by Per Bothner <per@bothner.com>

				   3/13
				   ----
doc/{bash.1,bashref.texi}
	- clarify the prompt strings the undergo expansion (PS0, PS1, PS2, and
	  PS4) before being displayed.  Based on a report from Grisha Levit
	  <grishalevit@gmail.com>

				   3/14
				   ----
input.c
	- bufstream_ungetc: return EOF if being asked to unget a character to
	  a NULL buffer
	- buffered_getchar: check buffered_fd is valid and buffers[buffered_fd]
	  is non-NULL before trying to dereference. Fixes bug reported by
	  floyd <floyd@floyd.ch>

execute_cmd.c
	- execute_null_command: if we fork to execute the command, the subshell
	  is not interactive
	- execute_null_command: for safety's sake, if a redirection attached
	  to a null command affects fd 0 or the fd the shell is reading for
	  input, and the redirection can potentially change or close that file
	  descriptor, force a fork so the redirection is done in a subshell

				   3/15
				   ----
lib/readline/display.c
	- update_line: if we have to output some bytes, and we are outputting
	  the prompt string, make sure we correct _rl_last_c_pos if we are
	  at the wrap offset -- what if all of the characters in the prompt
	  are invisible, so the visible length is 0?  Fixes display bug
	  reported by Grisha Levit <grishalevit@gmail.com>

execute_cmd.c
	- undo_partial_redirects: new function, performs redirections specified
	  in redirection_undo_list and disposes of them. Intended to be used
	  to unwind redirections performed before a redirection error
	- dispose_partial_redirects: new function, disposes of
	  redirection_undo_list and nulls the list
	- execute_command_internal: use undo_partial_redirects

execute_cmd.h
	- undo_partial_redirects: extern declaration
	- dispose_partial_redirects: extern declaration

subst.c
	- exp_jump_to_top_level: if we are throwing an expansion error while
	  expanding a redirection (expanding_redir != 0), undo any undoable
	  redirections by calling undo_partial_redirects() so we don't leave
	  any in place

variables.c
	- initialize_shell_variables: if SHELLOPTS is in the environment,
	  unset the readonly attribute on any existing variable with that
	  name. It may have been created by processing a -o option on the
	  command line.  Fixes issue reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   3/16
				   ----
lib/readline/histfile.c
	- read_history_range: short-circuit and do nothing if the history file
	  is of 0 size
	- read_history_range: make sure the buffer is zero-terminated so the
	  timestamp tests work right for history files of 1 character.  Report
	  and recommended fix from Denis Martinez <denis.martinez@gmx.com>

lib/readline/complete.c
	- compute_lcd_of_matches: when trying to compute the common prefix
	  of a set of matches while performing case-insensitive completion
	  matching, don't sort the match list unless rl_sort_completion_matches
	  is non-zero.  Fixes problem reported by Roee Bar <roee@arista.com>

				   3/18
				   ----
subst.c
	- extract_dollar_brace_string: handle process substitution embedded in
	  a ${...} expansion in the same way as command substitution.  Reported
	  by D630 <d630@posteo.net>

parse.y
	- LEX_GTLT: new flag, set by parse_matched_pair when a `<' or '>' is
	  read
	- parse_matched_pair: handle an embedded process substitution like an
	  embedded command substitution if we are parsing an array index or
	  a dollar-brace expansion.  Reported by D630 <d630@posteo.net>

				   3/21
				   ----
subst.h
	- ASS_NOEVAL, ASS_NOLONGJMP: new values for assignments, used by
	  make_variable_value

variables.c
	- make_variable_value: ASS_NOEVAL: if this is set, don't attempt
	  arithmetic evaluation or case modification, just produce the value
	  (still honor ASS_APPEND)
	- make_variable_value: ASS_NOLONGJMP: don't longjmp back to top_level
	  if arithmetic evaluation fails due to a syntax error
	- bind_variable_internal: make sure aflags is passed to all calls to
	  make_variable_value
	- push_temp_var: add ASS_NOLONGJMP to the flags passed to
	  bind_variable_internal.  Fixes bug reported by D630 <d630@posteo.net>

bashline.c
	- bash_execute_unix_command: don't bother to attempt optimization by
	  checking whether the call to parse_and_execute changes $READLINE_LINE;
	  it can be defeated by the new code that optimizes appends to string
	  variables. Bug reported by Grisha Levit <grishalevit@gmail.com>

				   3/22
				   ----
subst.c
	- expand_string_for_rhs: re-apply change from 2/19 based on discussion
	  on the austin-group mailing list about how unquoted ${var-$*}
	  expands when IFS is null.  Originally reported by Martijn Dekker
	  <martijn@inlv.org>

				   3/25
				   ----
parse.y
	- read_token_word: if we read a WORD immediately after a CASE, FOR, or
	  SELECT, increment `expecting_in_token' to note that we're going to
	  be reading IN as the next non-newline token
	- special_case_tokens: if we're expecting an IN (expecting_in_token > 0)
	  and we have an "in", return IN and decrement expecting_in_token. This
	  is a better implementation of Posix grammar rule 6 than the previous
	  code in that function (which is still there for posterity, but should
	  eventually be removed).  Fixes bug reported by Torka Noda
	  <kanito.tasoga@gmail.com>

subst.c
	- string_list_pos_params: if the expansion is not quoted, and IFS is
	  null, return a string containing the quoted positional parameters
	  separated by spaces.  Callers know what to do with the string
	- parameter_brace_substring,parameter_brace_remove_pattern,
	  parameter_brace_transform,parameter_brace_patsub,parameter_brace_casemod:
	  for the VT_POSPARMS case, after calling the operator-specific
	  expansion function, which eventually calls string_list_pos_params,
	  leave the returned string alone, since it's already quoted properly
	- parameter_brace_expand: after calling the above functions to perform
	  expansions, if the expansion is being performed on an unquoted $*
	  when IFS is null, set the W_SPLITSPACE flag in the return WORD_DESC
	  so that splitting on spaces is performed on the already-quoted word.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>

				   3/28
				   ----
subst.c
	- process_substitute: change so the subshell doesn't inherit the 'v'
	  option, like command substitution now does (as of bash-4.4).
	  Suggested by Grisha Levit <grishalevit@gmail.com>

				   3/30
				   ----
subst.c
	- parameter_brace_casemod: now takes a pflags parameter, like
	  parameter_brace_patsub; changed callers
	- parameter_brace_transform: now takes a pflags parameter, like
	  parameter_brace_patsub; changed callers
	- pos_params_pat_subst,pos_params_modcase: if mflags indicates we're
	  on the rhs of an assignment statement and not going to perform
	  word splitting, we're expanding $*, and $IFS is null, make sure
	  string_list_pos_params treats the expansion as double-quoted, so
	  the positional parameters will be concatenated.  Fixes bug reported
	  by Grisha Levit <grishalevit@gmail.com>

				   3/31
				   ----
doc/{bash.1,bashref.texi}
	- add notes to the description of pipelines emphasizing that each
	  element of a pipeline is executed in a subshell, referring to the
	  description of a command execution environment, and that the
	  lastpipe option can modify that behavior. From a discussion with
	  Jean Delvare <jdelvare@suse.de>

				    4/1
				    ---
subst.c
	- expand_word_internal: set had_quoted_null to note for later if we
	  expand '', "", or "$x" when x is unset
	- expand_word_internal: if we expand "$param" (or "${param}") and we
	  come back with a single word with the W_HAVEQUOTEDNULL flag set,
	  make sure we set had_quoted_null to remember it for later. In this
	  case, if we already have seen a quoted null and we expanded $@ in
	  this (sub)string expansion, we don't want to do any of the special
	  $@ handling. In particular, we don't want to set *expanded_something,
	  because that will result in word splitting and quoted null removal.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>
	- parameter_brace_patsub: when expanding ${*/pat/sub} in the case
	  where ifs_is_null != 0 and (pflags & PF_NOSPLIT2) (meaning we aren't
	  going to be doing word splitting), pass MATCH_ASSIGNRHS so we do
	  the right thing in this case. Part of a set of cases inspired by
	  Grisha Levit <grishalevit@gmail.com>
	- param_expand: case '*': if we are on the rhs of an assignment
	  (PF_ASSIGNRHS) and ifs is unset, and $1 == " ", we need to make sure
	  string_list_dollar_at gets called with Q_DOUBLE_QUOTES so it quotes
	  the positional parameters before joining them into a string with
	  string_list_internal.  Otherwise, that first space gets removed by
	  the implicit word splitting that gets performed.  Reported by
	  Grisha Levit <grishalevit@gmail.com>

array.c
	- array_patsub,array_modcase: handle ${A[*]} identically to $* when
	  not quoted and IFS is null (separate with spaces).  Makes things
	  like ${A[*]/x/y} behave the same as ${*/x/y} when IFS is null

subst.c
	- parameter_brace_patsub,parameter_brace_casemod: if expanding ${A[*]}
	  when the match is on the rhs of an assignment statement (PF_ASSIGNRHS)
	  and ifs is null, make sure the match is performed as if it were
	  quoted
	- parameter_brace_substring: now takes a PFLAGS argument
	- parameter_brace_substring: if expanding $* in a context where we
	  don't want to do word splitting (expand_no_split_dollar_star &&
	  PF_NOSPLIT2), make sure we expand $* as if it were quoted
	- parameter_brace_substring: if expanding an unquoted $* on the rhs of
	  an assignment statement when IFS is null, make sure we expand the $*
	  as if it were quoted

				    4/4
				    ---
doc/{bash.1,bashref.texi}
	- read: document that a delim argument of '' terminates each line when
	  a NUL character appears

				    4/5
				    ---
subst.c
	- parameter_brace_expand_word: handle case where unquoted $@ is
	  expanded in a context where word splitting is not performed (PF_NOSPLIT2)
	  and IFS is not equal to the standard value
	- param_expand: handle case where unquoted $@ is expanded in a context
	  where word splitting is not performed (PF_NOSPLIT2) and IFS is not
	  equal to the standard value.  Fixes bug with IFS == $1 when expanding
	  unquoted $@ reported by Grisha Levit <grishalevit@gmail.com>

				    4/7
				    ---
subst.c
	- pos_params_pat_subst: if MATCH_ASSIGNRHS is set, don't expand $*
	  as quoted unless expand_no_split_dollar_star is also set. Fixes
	  expansion bug reported on 4/4 by Grisha Levit <grishalevit@gmail.com>
	- parameter_brace_transform: if we transform unquoted A[@] or A[*]
	  when IFS is null, don't quote the result of array_transform in the
	  same way we don't quote the result of parameter_list_transform,
	  since it will come back quoted.  Fixes bug reported by
	  Grisha Levit <grishalevit@gmail.com>
	- list_transform: if we transform unquoted $* or ${a[*]} when IFS is
	  null and expand_no_split_dollar_star is non-zero, call
	  string_list_pos_params with Q_DOUBLE_QUOTES to inhibit splitting.
	  We do this in all cases except @Q, which is inconsistent but more
	  intuitive.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>

				    4/8
				    ---
builtins/read.def
	- read_mbchar: if unbuffered == 2, we are running read -N and need to
	  use zreadn to read the rest of the multibyte char, since the
	  previous call to zreadn may have buffered characters.  Fixes bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

pathexp.h
	- QGLOB_CTLESC: new flag for quote_string_for_globbing: means to turn
	  CTLESC CTLESC (quoted CTLESC that's usually removed as part of
	  word splitting or quote removal) into CTLESC

pathexp.c
	- quote_string_for_globbing: if QGLOB_CTLESC is present in flags,
	  turn CTLESC CTLESC into CTLESC, even if the first CTLESC is preceded
	  by a backslash. Callers can't do this because the remaining CTLESC
	  will be treated as a quoting character and turned into a backslash

execute_cmd.c
	- execute_case_command: if the pattern is not quoted, make sure to tell
	  quote_string_for_globbing to turn CTLESC CTLESC into CTLESC by
	  passing QGLOB_CTLESC.  Fixes bug reported 4/2 by Martijn Dekker
	  <martijn@inlv.org>

				    4/9
				    ---
subst.c
	- string_transform: after calling ansiexpand for the `E' transformation,
	  need to call dequote_escapes because ansiexpand assumes it is being
	  called by the parser and arranges for ansicstr to quote CTLESC and
	  CTLNUL with CTLESC.  Reported by Grisha Levit <grishalevit@gmail.com>

variables.c
	- mk_env_string: when exporting functions, run them through
	  dequote_escapes because any strings containing CTLESC or CTLNUL are
	  still quoted with CTLESC.  Reported by Grisha Levit
	  <grishalevit@gmail.com>

subst.[ch]
	- quote_escapes,dequote_escapes: now take const char * argument

execute_cmd.c
	- execute_intern_function: if the function name contains CTLESC, run
	  it through dequote_escapes just in case it got CTLESC quoting
	  CTLESC or CTLNUL from the parser

				   4/11
				   ----
eval.c
	- reader_loop: make sure PS0 is expanded and displayed before
	  incrementing the command number

parse.y
	- prompt_history_number:  function to make history number as reported
	  by \!, or posix mode !!, be the same index that the (possibly multi-
	  line) command will be stored with. The history library increments
	  history_offset as soon as a new line is entered, and it's up to the
	  history code to store the second and subsequent lines of a command
	  in the same history entry.  If we are expanding PS0 or PS4, or
	  a ${var@P} expansion, we're already past the history entry no
	  matter what.  Inspired by patch from Grisha Levit
	  <grishalevit@gmail.com>
	- decode_prompt_string: call prompt_history_number
	- decode_prompt_string: if expanding PS4 or ${var@P}, make the
	  command number the same as reported by PS0/PS1/PS2

				   4/12
				   ----
support/Makefile.in
	- clean: remove man2html.o as part of this production instead of
	  waiting until `distclean'. Reported by chrlis <chrlis@sbrella.com>

subst.c
	- string_list_pos_params: if we are expanding $* in a context where
	  IFS is null and expand_no_split_dollar_star is set (no word
	  splitting), use string_list_dollar_star to force the positional
	  parameters to be joined without first separating them into a list
	  and attempting to join them later.  Fixes problem with constructs
	  like ${var=${*:1}}, pointed out by Grisha Levit
	  <grishalevit@gmail.com>. This undoes change to @Q from 4/7, so
	  list_transform change reverted

				   4/19
				   ----
builtins.h
	- added BUILTINS_H include guard

examples/loadables/Makefile.in
	- install loadables.h as sample include file, along with Makefile.inc

				   4/23
				   ----
bashline.c
	- maybe_make_readline_line: don't try to do anything if the passed
	  NEW_LINE is NULL.  Report from Jaren Stangret <sirjaren@gmail.com>,
	  fix from Eduardo Bustamante <dualbus@gmail.com>

				   4/24
				   ----
parse.y
	- xparse_dolparen: if the current token (the last thing read_token
	  returned to yylex) is shell_eof_token, assume that it is the new
	  bison lookahead token and clear it. Fixes bug reported by
	  Werner Fink <werner@suse.de>

				   4/25
				   ----
doc/{bash.1,bashref.texi}
	- cmdhist: clarify that this option only has an effect if history is
	  enabled. Suggested by Matthew Braun <matthew@powerplug.com>

				   4/26
				   ----
jobs.c
	- wait_for: if a non-interactive shell with job control enabled (set -m)
	  detects that a foreground job died due to SIGINT, act as if the shell
	  also received the SIGINT. Prompted by an austin-group-l discussion
	- waitchld: run SIGCHLD trap for each child exited even if job control
	  is not enabled when in Posix mode. Prompted by an austin-group-l
	  discussion

				   4/27
				   ----
lib/readline/histfile.c
	- read_history_range: if the history file is empty, free the history
	  filename before returning. Report and fix from Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/bind.c
	- rl_parse_and_bind: make sure there is something, even if it's a
	  quoted empty string, before the `:' in a key binding.  Report from
	  Eduardo Bustamante <dualbus@gmail.com>
	- rl_parse_and_bind: if the right side of a key binding starts with a
	  quote, make sure there's a matching close quote before treating it
	  as a macro definition
	- rl_translate_keyseq: if a key sequence ends with \C- or \M- (or
	  \C-\M-) make sure we break out of the loop if moving to the character
	  to be translated is a NUL. Old code did this only in the \C-\M-
	  case. Report from Eduardo Bustamante <dualbus@gmail.com>

				   4/28
				   ----
lib/glob/sm_loop.c
	- GMATCH: implement a clever technique from glibc that avoids
	  backtracking past a `*' if we've already chosen to use it and need
	  matches beyond it.  Look at https://research.swtch.com/glob for a
	  longer explanation. This results in a significant speedup for globs
	  with multiple instances of `*', especially with more than 4.

				    5/2
				    ---
lib/readline/bind.c
	- rl_translate_keyseq: make sure a trailing backslash in the key
	  sequence is preserved. Report from Eduardo Bustamante
	  <dualbus@gmail.com>

				    5/3
				    ---
builtins/builtin.def
	- builtin_builtin: make sure to set  this_shell_builtin to the builtin
	  command being executed, overwriting `builtin'. Leave
	  last_shell_builtin alone.  Fixes bug reported by Luiz Angelo Daros
	  de Luca <luizluca@gmail.com>

jobs.c
	- waitchld: modify change of 4/26 to run SIGCHLD traps even if job
	  control is not enabled

lib/readline/misc.c
	- rl_get_previous_history: if we didn't find a previous history entry
	  to use, call rl_maybe_unsave_line before returning because we
	  aren't going to use the saved line, and it has the same undo list
	  as rl_undo_list.  Fixes fuzzing bug reported by Eduardo Bustamante
	  <dualbus@gmail.com>
	- rl_get_{next,previous}_history: if there is no history list, don't
	  bother doing anything

				    5/4
				    ---
expr.c
	- popexp: if we error out due to stack underflow, make sure to zero out
	  expression and lasttp; they may contain undefined values we don't
	  want evalerror to print
	- expr_unwind: handle expr_depth decrementing below zero
	- evalexp: restore the old value of evalbuf even if we error and
	  longjmp; we may have called evalexp recursively
	- evalerror: make sure expression is non-NULL before trying to print it.
	  These fix fuzzing bug reported by Eduardo Bustamante
	  <dualbus@gmail.com>, happens only in cases where we don't longjmp on
	  a fatal expansion error

				    5/5
				    ---
parse.y
	- read_token_word: when checking for a word that's a target of a
	  redirection, we can potentially call valid_array_reference, which
	  can end up calling the parser recursively. If it does that, we
	  need to make sure that yylval.word doesn't change, so we set it back
	  to the_word. Fixes another fuzzing bug

parse.y
	- arith_for_command: make syntax errors in the arithmetic for command
	  (signaled by make_arith_for_command returning NULL) more like
	  language syntax errors by calling YYERROR. Avoids complicated
	  attempts at error recovery and dealing with NULL returns from
	  command productions. Pointed out by Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/kill.c
	- _rl_copy_to_kill_ring: make sure the current slot in the kill ring
	  has something in it, even if the last command was a kill, before
	  trying to modify it. Another fuzzing bug

				    5/6
				    ---
builtins/read.def
	- read_builtin: if we see a backslash when not in raw mode (not -r),
	  only back up `i' when we read the next character if we know we added
	  a CTLESC the last time through the loop (skip_ctlesc == 0),
	  especially if i == 0. Another fuzzing bug from Eduardo Bustamante
	  <dualbus@gmail.com>

				    5/8
				    ---
builtins/read.def
	- read_mbchar: handle zreadn/zreadc/zread returning EOF in the middle
	  of an incomplete multibyte sequence.  Fixes another fuzzing bug
	- read_builtin: use mb_cur_max instead of constant 4 when deciding
	  whether the next character can exceed the number of bytes available
	  in input_string

lib/readline/input.c
	- MinGW: include <conio.h> before <io.h>. Fix from Eli Zaretskii
	  <eliz@gnu.org>

builtins/read.def
	- read_builtin: if we get input from readline, we need to get the
	  remainder of a multibyte character from rlbuf instead of calling
	  read_mbchar. Bug reported by Eduardo Bustamante <dualbus@gmail.com>

				    5/9
				    ---
parse.y
	- token_is_assignment: use the allocated buffer approach in all cases,
	  not just if we're not using bash malloc. This avoids the assignment
	  to t[i+1] writing beyond the end of the allocated token if
	  i == token_buffer_size - 1. Another fuzzing bug
	- xparse_dolparen: if parse_string returns < 0, we clear out the
	  current shell_input_line before performing a longjmp, since we're
	  abandoning parsing of this command.  This is consistent with how
	  the parser resynchronizes after other syntax errors
	- GRAMMAR: add 'error yacc_EOF' production to handle a syntax error
	  that's immediately followed by an EOF after resynchronization.
	  Fixes another fuzzing bug

				   5/10
				   ----
lib/readline/text.c
	- _rl_set_mark_at_pos: don't let the mark be set to a position < 0.
	  Fixes a fuzzing bug
	- rl_exchange_point_and_mark: don't do anything if the mark is already
	  less than 0

				   5/12
				   ----
lib/readline/rlmbutil.h
	- wchar_t: make sure this is defined as int if multibyte characters
	  aren't supported

lib/readline/text.c
	- _rl_change_case: don't force use of ascii toupper and tolower if
	  isascii returns true; it's not defined to work on characters outside
	  the 0..255 (really 0..127) range.  Bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

				   5/14
				   ----
lib/readline/text.c
	- rl_change_case: handle case where the old and new characters (after
	  the case change) are not the same number of bytes. Pointed out in
	  http://lists.gnu.org/archive/html/bug-bash/2015-01/msg00091.html

lib/readline/display.c
	- expand_prompt: use `ret' as first parameter to _rl_find_prev_mbchar
	  since that needs the base of the array. Bug from fuzzing reported by
	  Eduardo Bustamante <dualbus@gmail.com>

				   5/15
				   ----
execute_cmd.c
	- execute_simple_command, execute_arith_command, execute_cond_command,
	  execute_arith_for_command: adjust the line number when executing a
	  function interactively so that the first command in the function is
	  line 1, not line 0, as Posix requires.  Reported by Robert Elz
	  <kre@bmunnari.OZ.AU>
	- execute_simple_command, execute_arith_command, execute_cond_command,
	  execute_arith_for_command: ony adjust the line number when executing
	  a function interactively if we are not sourcing a file
	  (sourcelevel == 0), so this is consistent everywhere we adjust the
	  line number

				   5/16
				   ----
bashline.c
	- bash_directory_completion_hook: when calling split_at_delims to see
	  whether a ${ or $( is closed, use the right value for `start' relative
	  to the substring beginning at `$'.  Bug from fuzzing reported by
	  Eduardo Bustamante <dualbus@gmail.com>

expr.c
	- expassign: if the call to expcond generates a syntax error in a
	  context when the shell won't longjmp (like when evaluating $PS1),
	  it will end up NULL and we need to catch it before calling strlen.
	  Bug from fuzzing reported by Eduardo Bustamante <dualbus@gmail.com>

examples/bash-completion/
	- new place to include a current or recent version of the
	  bash-completion package

				   5/19
				   ----
lib/readline/display.c
	- CHECK_INV_LBREAKS: new versions for multibyte and single-byte chars,
	  so the multibyte version can check and increase the size of
	  line_state_invisible->wbsize and line_state_invisible->wrapped_line,
	  callers who call CHECK_INV_LBREAKS must update
	  wrapped_line[newlines] when in HANDLE_MULTIBYTE mode. Fuzzing bug
	  reported by Eduardo Bustamante <dualbus@gmail.com>

				   5/24
				   ----
lib/readline/search.c
	- _rl_nsearch_callback,noninc_search: handle _rl_search_getchar
	  returning -1 (EOF or read error) by aborting the search.
	  Fuzzing bug reported by Eduardo Bustamante <dualbus@gmail.com>

				   5/25
				   ----
variables.c
	- localvar_inherit: new variable, controlled by shopt localvar_inherit
	  option
	- make_local_variable: if localvar_inherit is set, the new local
	  variable inherits a previous scope's variable's value, attributes
	  (except nameref), and dynamic variable information. If a local
	  variable inherits a value, the local is not invisible

builtins/shopt.def
	- localvar_inherit: new option

doc/{bash.1,bashref.texi}
	- localvar_inherit: document new shopt option

				   5/29
				   ----
lib/readline/readline.c
	- _rl_subseq_result: only return -1 and back up the chain if we are
	  dealing with a result (r) that's already < 0 and we are at the end
	  of a multi-key sequence. Otherwise, a failing readline command (e.g.,
	  delete-char at the end of a line) could cause this code to be
	  executed.  Report from Nuzhna Pomoshch <nuzhna_pomoshch@yahoo.com>

lib/readline/histfile.c
	- read_history_range: if the file isn't a regular file, return an
	  error. Bug report from Eduardo Bustamante <dualbus@gmail.com>,
	  relaying from IRC

				   5/30
				   ----
variables.c
	- set_pwd: if in Posix mode, and PWD appears in initial environment as
	  an absolute pathname to the current directory, set PWD to the result
	  of canonicalizing the environment value, or to the physical path if
	  canonicalization fails. From a suggestion by Eduardo Bustamante
	  <dualbus@gmail.com>

				   5/31
				   ----
builtins/read.def
	- read_builtin: if -n or -N option is supplied with a 0 argument,
	  don't attempt to read any characters; bail out right away. Reported
	  by Eduardo Bustamante <dualbus@gmail.com>, relaying from IRC

				    6/3
				    ---
config.h.in
	- HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC: add define, used by stat-time.h
	  to construct a timespec from struct stat. Report and fix from
	  Siteshwar Vashisht <svashisht@redhat.com>

variables.h
	- att_regenerate: new internal variable attribute: if set, regenerate
	  dynamic variable's value when it's exported and we are creating the
	  export environment

variables.c
	- init_dynamic_variables: LINENO, EPOCHSECONDS, EPOCHREALTIME: set
	  internal regenerate attribute for these dynamic variables
	- make_env_array_from_var_list: if a dynamic variable has the
	  regenerate attribute set, call the dynamic value function to generate
	  an updated value before placing it in the environment.  From a report
	  about exporting LINENO from Robert Elz <kre@bmunnari.OZ.AU>

				    6/4
				    ---
lib/glob/sm_loop.c
	- BRACKMATCH: at the matched: label, make sure we get the bracket
	  character we're looking for (char class, collating symbol. etc.)
	  before we decrement the count of braces we're looking for. Eventually
	  we could do something about badly-formed bracket expressions

				    6/7
				    ---
lib/readline/histlib.h
	- strchr: only declare if  __STDC__ is not defined, since we already
	  include <string.h>.  Report from Chi-Hsuan Yen <yan12125@gmail.com>

				    6/9
				    ---
lib/readline/display.c
	- update_line: when wrapping lines with multibyte chars at the end of
	  the new line being wrapped, make sure we copy the NULL byte in old
	  when moving the contents of old around. Fuzzing bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

lib/readline/mbutil.c
	- _rl_get_char_len: use MB_CUR_MAX in the call to mbrlen; there's no
	  need to look at the rest of the string when we're just interested in
	  the length of a single character

				   6/12
				   ----
jobs.c
	- wait_for: when waiting for the next child to exit (ANY_PID), make
	  sure to restore the old SIGINT handler before returning.  Fixes
	  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864649

				   6/14
				   ----
lib/readline/display.c
	- expand_prompt: make sure `ret' is NULL-terminated before calling
	  _rl_prev_mbchar_internal, since that calls strlen, which requires
	  the passed string to be NULL-terminated. Another fuzzing bug.

				   6/15
				   ----
lib/readline/isearch.c
	- _rl_isearch_fini: use rl_replace_line instead of strcpy so rl_end
	  gets set right
	- _rl_isearch_fini: after restoring rl_point, call _rl_fix_point so
	  we don't set rl_point > rl_end. Fixes a fuzzing bug

lib/readline/mbutil.c
	- _rl_find_next_mbchar_internal: if _rl_adjust_point returns < 0,
	  just punt, treat the value as a byte, and advance point by 1

lib/readline/util.c
	- rl_tilde_expand: rearrange code in the whitespace loop so that
	  `start' gets tested first and we don't try to dereference
	  rl_line_buffer[-1]. Another fuzzing bug from dualbus@gmail.com

bashline.c
	- bash_dequote_filename: make sure that pointers that are used as
	  indices into sh_syntaxtab are cast to unsigned char first, to
	  avoid problems with signed chars > 128. Fixes a fuzzing bug.

lib/readline/kill.c
	- _rl_copy_to_kill_ring: when reallocating the kill ring, make sure to
	  allocate one more than the max number of kills so the loop that
	  copies the kill ring entries down runs right (and to mirror the
	  initial allocation). Fixes a fuzzing bug.

lib/readline/isearch.c
	- _rl_isearch_dispatch: make sure that cxt->sline_index never goes < 0
	  even when searching a line in reverse. Fixes a fuzzing bug

				   6/16
				   ----
parse.y
	- xparse_dolparen: short-circuit immediately if passed a empty string

lib/readline/display.c
	- update_line: when wrapping multibyte characters, make sure we deal
	  with WCWIDTH returning -1. Fixes a fuzzing bug

				   6/17
				   ----
execute_cmd.c
	- execute_coproc: make sure `invert' is set before trying to use it
	  when returning failure on invalid coproc name.  Report and fix from
	  Eduardo Bustamante <dualbus@gmail.com>
	- execute_command_internal: make sure execute_coproc sets
	  last_command_exit_value if it returns failure, so an invalid name
	  can set $? = 1.  Report and fix from Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/display.c
	- update_line: make sure all references to `wrapped_line' are wrapped
	  with #ifdef HANDLE_MULTIBYTE.  Report and fix from Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/vi_mode.c
	- _rl_vi_change_char: don't use rl_point++ when you mean to move
	  forward a character; use _rl_vi_append_forward to account for
	  multibyte characters and take vi end of line handling into account
	- _rl_vi_last_replacement: now an array of chars whether we are
	  using multibyte chars or not. If we're not, the character we read
	  to use as the replacement is saved as the first element of the array
	- rl_vi_change_char,_rl_vi_callback_change_char: changes to deal with
	  _rl_vi_last_replacement being an array.  Fixes bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

lib/readline/mbutil.c
	- _rl_get_char_len: look at at most MB_CUR_MAX characters, but maybe
	  fewer if the length of the string is less

builtins/bind.def
	- unbind_keyseq: new function for the -r option; checks whether the
	  key sequence is actually bound before trying to bind it to NULL.
	  Partial fix for https://savannah.gnu.org/support/?109329

parse.y
	- augment `error yacc_EOF' production to call YYABORT in non-interactive
	  shells or calls to parse_and_execute (eval, command substitution,
	  etc.) Fixes bug reported by Martijn Dekker <martijn@inlv.org>

				   6/19
				   ----
bashline.c
	- edit_and_execute_command: don't add rl_line_buffer to the history
	  list if it's empty; consistent with how other code treats an empty
	  line

execute_cmd.c
	- execute_builtin: make sure to preserve the temporary env across the
	  execution of the `read' builtin or `fc' builtin if HISTORY is
	  defined, in case `read -e' calls edit-and-execute-command.  Should
	  have no side effects. Reported by Eduardo Bustamante
	  <dualbus@gmail.com>

general.c
	- line_isblank: new function: returns true if passed string is composed
	  entirely of blanks

general.h
	- line_isblank: new extern declaration

parse.y
	- history_delimiting_chars: return "" for a blank line, since there's
	  nothing to delimit with `;'

				   6/21
				   ----
jobs.c
	- wait_for: make sure to call restore_sigint_handler before returning
	  if we return out of the loop due to no children. Report from
	  Eduardo Bustamante <dualbus@gmail.com>

subst.c
	- expand_word_internal: if split_on_spaces is set, and the word is
	  unquoted, and IFS is null, split the results of the previous steps
	  on $' \t\n' instead of just ' '. This relies on the previous steps
	  quoting the portions of the word that should not be split.  Fixes
	  bug reported by Kevin Brodsky <corax26@gmail.com>

expr.c
	- evalexp: after running expr_unwind, make sure we reset expr_depth
	  to 0 for the next call
	- expr_streval: if after a call to get_array_value (which can call
	  the expression evaluator recursively) we discover that expr_depth
	  is less than it was before we called it, we assume there has been
	  some kind of error and an expr_unwind, so we treat it as an
	  error and either longjmp back to the expression top level or return
	  0 immediately. Fixes bug reported by Eduardo Bustamante
	  <dualbus@gmail.com>

				   6/23
				   ----
doc/{bash.1,bashref.texi}
	- add text noting that $* and ${array[*]} (unquoted) can also expand
	  to multiple words

				   6/29
				   ----
general.[ch]
	- default_columns: new function, returns the value of COLUMNS, or
	  refreshes it if check_window_size is set and COLUMNS is unset. By
	  default, it returns 80

execute_cmd.c
	- select_query: use default_columns() instead of fetching value of
	  COLUMNS directly

builtins/help.def
	- show_builtin_command_help: use default_columns() instead of fetching
	  value of COLUMNS directly

				   6/30
				   ----
builtins/read.def
	- read_builtin: call QUIT during the read loop, just in case we get a
	  signal we should act on that didn't cause read to be interrupted.
	  Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1466737
	- read_builtin: if -n or -N is supplied with a 0 argument, try a zero-
	  length read to detect errors and return failure if that read returns
	  a value < 0. Suggested by dualbus@gmail.com

				    7/4
				    ---
bashhist.c
	- maybe_add_history: keep track of whether the current line is a shell
	  comment, even if we're not adding it because it's in a multi-line
	  command, so we use appropriate delimiters between it and any
	  subsequent lines. Fixes bug reported by Grisha Levit
	  <grishalevit@gmail.com> back on 2/28/2017

bashline.c
	- operate_and_get_next: if given an explicit argument, use that to
	  choose which line in the history to use.

lib/readline/doc/rluser.texi,doc/bash.1
	- operate-and-get-next: document new effect of explicit numeric arg

lib/readline/complete.c
	- fnprint: make sure print_len is initialized before using it on
	  systems without multibyte character support.  Report and fix from
	  Juan Manuel Guerrero <juan.guerrero@gmx.de>

				    7/6
				    ---
builtins/printf.def
	- PRETURN,printf_builtin: check variable returned by bind_printf_variable,
	  return failure if that indicates we can't perform an assignment
	  because the variable is marked readonly or noassign. Fixes bug
	  reported by Arnaud Gaillard <arnaud.mgaillard@gmail.com>

				    7/7
				    ---
lib/readline/text.c
	- rl_quoted_insert: new feature: a negative argument means to insert
	  the next -COUNT characters using quoted-insert. Original feature
	  from Jason Hood <jadoxa@yahoo.com.au>. Still needs work on
	  redisplay
	- _rl_insert_next_callback: implement support for negative arguments
	  similar to rl_quoted_insert: we just insert one at a time and keep
	  increasing the count until it hits 0

lib/readline/misc.c
	- _rl_arg_callback: if the return value from _rl_arg_dispatch indicates
	  we should keep reading a numeric argument, update the message with
	  the new arg value

				    7/8
				    ---
lib/readline/signals.c
	- _rl_handle_signal: make sure all uses of any of the job control
	  signals are protected by a check for SIGTSTP being defined.  Report
	  from Juan Manuel Guerrero <juan.guerrero@gmx.de>

				   7/11
				   ----
lib/readline/vi_mode.c
	- rl_vi_replace: when making the new keymap for vi replacement mode,
	  make sure that ANYOTHERKEY is set correctly, otherwise some input
	  will cause _rl_dispatch to return -2 to the top level.  Fixes fuzzing
	  bug reported by Ben Wong <benjamin.a.wong@gmail.com>

				   7/19
				   ----
builtins/read.def
	- struct ttsave: make the attrs member a struct, not a pointer, to force
	  a structure copy that will survive a longjmp to another context.
	  Leaving it as a pointer to a local struct is not portable

				   9/10
				   ----
execute_cmd.c
	- execute_builtin: make sure that we set up the unwind-protect for
	  pop_scope (temporary_env is non-zero) so that the temporary env
	  is propagated to the current environment only for special builtins
	  (source/eval/unset) not run by the command builtin
	  (flags & CMD_COMMAND_BUILTIN == 0).  Fixes bug reported by
	  Martijn Dekker <martijn@inlv.org>

				   9/17
				   ----
builtins/printf.def
	- asciicode: don't use mblen to check whether or not a character is a
	  valid multibyte character; use mbtowc right away and then inspect
	  the return value.  Fixes bug reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   9/27
				   ----
{jobs,subst}.h
	- move declaration of last_command_subst_pid to subst.h, since it's
	  declared in subst.c and doesn't depend on job control. Reported by
	  Martijn Dekker <martijn@inlv.org>

builtins/read.def,variables.c
	- fixed a couple of problems (READLINE, ARRAY_VARS) that prevented
	  the minimal config from building

				   10/1
				   ----
parse.y
	- special_case_tokens: if we are returning DO in a case where the last
	  two tokens read are `FOR' and `WORD' make sure we decrement
	  expecting_in_token.  Fixes bug reported by Martijn Dekker
	  <martijn@inlv.org>

				   10/4
				   ----
subst.c
	- expand_string_for_rhs: now takes an additional PFLAGS argument from
	  its caller (one so far); passes that through to call_expand_word_internal
	  as W_ASSIGNRHS. Fixes bug reported by Martijn Dekker
	  <martijn@inlv.org>
	- expand_string_for_rhs: expanding b in ${a[:]=b} is now done as if
	  b were the rhs of an assignment statement. This means that splitting
	  isn't done, but tilde expansion is performed as if the statement
	  were `a=b'. Fixes splitting bug with $* reported by Martijn Dekker
	  <martijn@inlv.org>

command.h
	- W_NOASSNTILDE: new word flag, means to not perform tilde expansion
	  following a `:' even if the word has the W_ASSIGNRHS flag enabled

subst.c
	- expand_word_internal: if we see a `:' with the W_NOASSNTILDE flag
	  set, just add the character and inhibit any subsequent tilde
	  expansion. Currently not set anywhere, but it could be set in
	  expand_string_for_rhs to satisfy its peculiar semantics

				   10/6
				   ----
lib/sh/casemod.c
	- sh_modcase: convert even single-byte wide characters to wide upper
	  or lowercase equivalents to accommodate locales where single-byte
	  characters have multibyte upper and lower case conversions. Bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/7
				   ----
doc/{bash.1,bashref.texi}
	- slight changes to the description of command_not_found_handle to
	  clarify that it's executed in a separate execution environment,
	  just like if the command was found. Reported by Martijn Dekker
	  <martijn@inlv.org>

				   10/8
				   ----
lib/readline/doc/{history.3,hstech.texi}
	- history_get: clarify the range of valid values for the OFFSET
	  argument. From a report by Kevin Ryde <user42_kevin@yahoo.com.au>

				   10/21
				   -----
subst.c
	- expand_string_for_rhs: set W_NOASSNTILDE if the operator is `='
	  for backwards compatibility with bash-4.4

shell.c
	- main: set positional parameters before running the startup files,
	  so the startup files can inspect $@.  Often-requested feature,
	  most recently from Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/27
				   -----
doc/{bash.1,bashref.texi}
	- Arrays: add some clarifying language to make it clear that array
	  references that don't use the ${a[s]} syntax are subject to
	  globbing when passed as arguments to commands such as unset, and
	  should be quoted for safety. Change prompted by a report from
	  Eli Barzilay <eli@barzilay.org>

parse.y
	- parse_comsub: make sure we don't run off the end of the `ret'
	  buffer when checking for the here doc delimiter.  Report from
	  Jakub Wilk <jwilk@jwilk.net>, the result of a fuzzing test. Pointer
	  to place for the fix from Eduardo Bustamante <dualbus@gmail.com>

				   10/30
				   -----
builtins/pushd.def
	- get_directory_stack: make sure the current directory (element 0 of
	  the stack) is passed to polite_directory_format under the same
	  conditions as the rest of the stack entries (flags & 1). Otherwise
	  something like `cd ${DIRSTACK[0]}' will fail. Fixes bug reported
	  by Steve Jones <sjml@slohj.org>

builtins/declare.def
	- declare_internal: when checking for a `[' to see whether or not this
	  is an array variable declaration (declare -a foo[12]), make sure
	  we don't do the check if we're just dealing with shell functions.
	  Bug and pointer to fix from PJ Eby <pje@telecommunity.com>

				   11/1
				   ----
parse.y
	- parse_comsub: if we read a four-character word followed by a break
	  character, and that word is not one of the reserved words, set
	  lex_rwlen to 0 since we are no longer in a reserved word. It only
	  hurts if another break character immediately follows, so that test
	  succeeds again. Turn off the RESWDOK flag only if it's not a shell
	  metacharacter, too. Fixes bug reported by Kjetil Torgrim Homme
	  <kjetilho@scribus.ms.redpill-linpro.com>

				   11/3
				   ----
lib/readline/isearch.c
	- _rl_isearch_dispatch: if we are searching in reverse order, let
	  sline_index go to -1 to avoid searching the same line twice. It
	  gets reset right after that, so there's no danger of indexing into
	  the history line with a negative index.

				   11/7
				   ----
execute_cmd.c
	- time_command: only restore command->flags if CODE indicates we didn't
	  perform a longjmp back to top_level. If we did, `command' has already
	  been freed. Fixes bug reported on savannah by 
	  ukuvbu oibws <xyzdr4gon333@googlemail.com>
	  https://savannah.gnu.org/support/?109403

				   11/10
				   -----
lib/sh/unicode.c
	- u32cconv: make sure to initialize localconv to -1 (error) in case
	  we switch from a utf-8 locale to something else and call
	  iconv_close. Report from Egmont Koblinger <egmont@gmail.com>; fix
	  from Eduardo Bustamante <dualbus@gmail.com>

				   11/16
				   -----
subst.c
	- parse_comsub: istring_index should be a size_t to avoid integer
	  overflow when allocating large pieces of memory. Report and fix
	  from Siteshwar Vashisht <svashisht@redhat.com>, originally based on
	  http://lists.gnu.org/archive/html/bug-bash/2017-11/msg00047.html

				   11/24
				   -----
lib/readline/bind.c
	- rl_empty_keymap: new public function, returns non-zero if there are
	  no keys bound in the keymap passed as an argument

lib/readline/readline.h
	- rl_empty_keymap: new public extern declaration

lib/readline/doc/rltech.texi
	- rl_empty_keymap: document new function

lib/readline/bind.c
	- rl_generic_bind: keep track of the previous keymap and previous
	  index in a multi-key key sequence so we can remove an empty terminal
	  keymap and remove a previous override to ANYOTHERKEY. Right now,
	  this only works for one previous keymap level. Inspired by a report
	  from Clark Wang <dearvoid@gmail.com>

				   11/25
				   -----
lib/readline/display.c
	- _rl_update_final: make sure that computing the length of the visible
	  bottom line (botline_length) takes any invisible characters in the
	  prompt into account (woff). This value is used as part of the check
	  whether or not we want to remove the line-wrapping indicator on
	  terminals like xterm
	- _rl_update_final: when removing the line-wrapping indicator on xterm,
	  make sure we take invisible characters in the prompt (woff) into
	  account when computing the character in the rightmost physical
	  screen position. Fixes cosmetic line-wrapping issue reported by
	  Egmont Koblinger <egmont@gmail.com>

				   11/27
				   -----
lib/sh/ufuncs.c
	- fsleep: if using select to implement sleep, use restart after
	  a signal interrupts the select and handle pending signals. If
	  pselect is available, use that instead and block SIGCHLD while
	  pselect is executing.
	  Fixes report from Thiruvadi Rajaraman <trajaraman@mvista.com>

				   11/28
				   -----
lib/readline/signals.c
	- rl_check_signals: new public function: a wrapper for RL_CHECK_SIGNALS
	  that can be used by applications that install a wrapper for
	  rl_getc (rl_getc_function) so they can respond to signals that
	  arrive while waiting for input in the same way as rl_getc. The app
	  can use rl_pending_signal() to get the most recently-received
	  signal. From a discussion about Gnuplot initiated by
	  Rin Okuyama <rokuyama@rk.phys.keio.ac.jp>

lib/readline/readline.h
	- rl_check_signals: new extern declaration

lib/readline/doc/rltech.texi
	- rl_check_signals: document new public function

variables.c
	- set_pwd: test for and force an inherited OLDPWD to be a directory
	  if OLDPWD_CHECK_DIRECTORY is defined in config-top.h (it is by
	  default). Issue raised by Mikulas Patocka <mikulas@twibright.com>

config-top.h
	- OLDPWD_CHECK_DIRECTORY: new define, defined to 1 by default

				   11/29
				   -----
Makefile.in
	- pathexp.o: add dependencies on libintl.h.  Reported by
	  Ross Burton <ross@burtonini.com>

				   12/1
				   ----
lib/sh/ufuncs.c
	- fsleep: add blocking and releasing SIGCHLD using sigprocmask
	  around call to select(2) even if pselect(2) is not available

				   12/3
				   ----
execute_cmd.c
	- coproc_setstatus: new utility function, take a pointer to a coproc
	  and a status and mark the coproc as dead and having been reaped
	  with that status. Used by child processes who want to invalidate
	  the coproc's pid

				   12/5
				   ----
subst.c
	- process_substitute: instead of just having a flag to denote that a
	  file descriptor is connected to a process substitution, store the
	  pid of the child process (still needs work)
	- find_procsub_child,set_procsub_status,reap_procsubs: utility
	  functions to allow the job control code to detect that a process
	  substitution child has died and deallocate the file descriptors
	  or pathname

subst.h
	- find_procsub_child,set_procsub_status,reap_procsubs: extern
	  declarations

nojobs.c
	- set_pid_status: if we are reaping a process substitution, call
	  set_procsub_status to record the fact

jobs.c
	- waitchld: if we are reaping a process substitution, call
	  set_procsub_status to record the fact. Doesn't really do anything
	  yet

				   12/6
				   ----
execute_cmd.c
	- execute_command: don't call unlink_fifo_list if we're in the
	  middle of executing a list of commands (executing_list != 0).
	  Partial fix for bug reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>
	- execute_simple_command: don't close process substitution file
	  descriptors in the parent after forking children in a pipeline;
	  defer until pipeline completes, since parent may have inherited
	  fds from a calling scope (e.g., via `.'). EXPERIMENTAL
	- execute_disk_command: don't close process substitution file
	  descriptors in the parent after forking the child. EXPERIMENTAL

				   12/7
				   ----
doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
	- show-mode-in-prompt: clarify that this must be enabled before the
	  vi and emacs mode strings are prefixed to the prompt.  Report from
	  Rob Foehl <rwf@loonybin.net>

				   12/8
				   ----
execute_cmd.c
	- execute_coproc: don't warn about an existing coproc if the write and
	  read file descriptors are unusable (-1), as they will be after a
	  call to coproc_closeall in a subshell. Fixes spurious warning
	  reported by Tobias Hoffmann <lfile-list@thax.hardliners.org>

jobs.c
	- bgp_resize: avoid overflow when calculating the new size if the
	  child process limit is something ridiculously large. Report and
	  fix from Natanael Copa <ncopa@alpinelinux.org>

execute_cmd.c
	- execute_builtin_or_function: if we return via the return builtin, we
	  don't get a chance to free the saved fifo list, so add an unwind-
	  protect to make sure it happens. Part of fix for leak reported by
	  Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>
	- execute_command_internal: if we unwind via the return builtin (e.g.,
	  we execute a function which then returns via the return builtin to
	  a previous function), we don't free the saved fifo list, so add an
	  unwind-protect to make sure the free happens. Rest of fix for leak
	  reported by Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>

subst.c
	- add_fifo_list: for the FIFO case (no /dev/fd), make sure we
	  initialize the new members of the fifo list after xrealloc

				   12/9
				   ----
subst.c
	- dev_fd_list: now a list of type `pid_t' so we can store process
	  associated with the pipe fd into the right element; change all
	  necessary functions (copy_fifo_list, add_fifo_list)
	- process_substitute: store pid of child process into the right
	  index in dev_fd_list after opening the pipe. Process ID of -1 means
	  process has been reaped and fd needs to be closed (or FIFO needs to
	  be unlinked); value of 0 means slot is unused

jobs.c
	- wait_for_background_pids: call reap_procsubs to make sure we clean
	  up all reaped process substitutions before trying to wait for
	  everything (still needs work)

tests/{run-procsub,procsub.{tests,right}}
	- new file, tests of process substitution that have failed in the past

				   12/10
				   -----
jobs.c
	- wait_for_background_pids: warn if one of the jobs is stopped

subst.c
	- wait_procsubs: new function, call wait_for for every "live" process
	  substitution

jobs.c
	- wait_for_background_pids: call wait_procsubs to reap any living
	  process subsitutions

				   12/13
				   -----
lib/readline/bind.c
	- parser_if: add support for testing the readline version, using the
	  full set of arithmetic comparison operators (and supporting both
	  = and ==), using version numbers of the form major[.[minor]]

				   12/14
				   -----
subst.[ch]
	- string_list_dollar_star: now takes QUOTED and PFLAGS arguments like
	  string_list_dollar_at, changed all callers. Not used yet.

				   12/16
				   -----
subst.c
	- param_expand: broke out cases of expanding unquoted (quoted == 0)
	  $* on the rhs of an assignment statement (pflags & PF_ASSIGNRHS)
	  with various values of IFS (unset, null, set to non-null value) to
	  capture the expansion subtleties. From a report back on 11/24 by
	  Martijn Dekker <martijn@inlv.org>

				   12/17
				   -----
array.h
	- set_element_value: new define, sets array element AE to VALUE

variables.c
	- set_pipestatus_array: use set_element_value where appropriate

				   12/18
				   -----
subst.c
	- parameter_brace_find_indir: when expanding the indirect parameter
	  to find the eventual variable name, we don't perform word splitting.
	  Make sure this does the right thing for * and @.  Fixes bug
	  reported by isabella parakiss <izaberina@gmail.com>

				   12/19
				   -----
doc/{bash.1,bashref.texi}
	- indirect expansion: make sure to note that the value of the indirect
	  variable does not undergo word splitting as one of its expansions,
	  as in fix from 12/18

				   12/22
				   -----
subst.c
	- parameter_brace_expand_rhs: make sure the value this function returns
	  when OP is `=' is quoted appropriately, as the callers expect. More
	  changes from Posix interp 221. Fixes report from Martijn Dekker
	  <martijn@inlv.org>

variables.c
	- assign_hashcmd: if running in a restricted shell, make sure the
	  target of the hash assignment can be found via a $PATH search, to
	  prevent users assigning commands to the hash table they would not
	  ordinarily have access to. Fixes issue raised by Drew Parker
	  <andrew.s.parker2@gmail.com>

builtins/hash.def
	- hash_builtin: if running in a restricted shell, make sure the
	  pathname target of `hash -p' can be found via a $PATH search, to
	  prevent users assigning commands to the hash table they would not
	  ordinarily have access to.

				   12/27
				   -----
array.c,arrayfunc.c,...
	- many changes to clean up unused variables and functions. From a
	  report from Siteshwar Vashisht <svashisht@redhat.com>

				   12/28
				   -----
lib/readline/terminal.c
	- _rl_term_clrscroll: save the `E3' termcap capability, which clears
	  the scrollback buffer where supported. Unused right now

lib/readline/rlprivate.h
	- _rl_term_clrscroll: extern declaration

lib/readline/bind.c
	- parser_if: added simple variable comparison capability. Allowable
	  operators are `=', `==', and `!='; boolean variables must be
	  compared to either `on' or `off'; variable names must be separated
	  from the operator by whitespace

doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
	- document new `if variable comparison value' construct

				 1/2/2018
				 --------
lib/glob/sm_loop.c
	- EXTMATCH: when matching against !(patlist), if a filename beginning
	  with a `.' does not match any of the patterns in patlist, don't
	  return it as a match if leading dots need to be matched explicitly
	  (flags & FNM_PERIOD). Report from Eric Cook <llua@gmx.com>

				    1/3
				    ---
variables.[ch]
	- bind_function_def: takes an additional flags argument. If FLAGS&1,
	  overwrite any existing function_def hash table entry; if FLAGS==0,
	  leave any existing function_def alone.

make_cmd.c
	- make_function_def: call bind_function_def with flags == 0

execute_cmd.c
	- execute_intern_function: call bind_function_def with flags == 1 so
	  we have function_def information that's correct for where the
	  function is defined, not just where it's last parsed. Fixes report
	  from Bruno Vasselle <bruno.vasselle@laposte.net>; final piece of
	  fix from 12/15/2011

				    1/4
				    ---
subst.c
	- param_expand: deal with string_list_dollar_star returning NULL.
	  Fixes bug reported by Martijn Dekker <martijn@inlv.org>

builtins/history.def
	- history_builtin: enabled code that performs range deletion

				    1/5
				    ---
subst.c
	- do_assignment_internal: if performing a compound assignment, make
	  sure to pass ASS_CHKLOCAL flag to do_compound_assignment if the
	  assignment word has the W_CHKLOCAL flag set
	- do_compound_assignment: honor ASS_CHKLOCAL flag and check for an
	  existing local variable before creating or modifying a global
	  variable

builtins/declare.def
	- declare_internal: new (undocumented so far) option: -G. Means to
	  act on global variables (create, modify) if no local variable is
	  found with the specified name
	- declare_find_variable: new declare-specific wrapper functon for
	  declare builtin; obeys -g and -G options in one place
	- declare_internal: if no variable is found after following any nameref
	  chain, look up the variable using declare_find_variable to honor the
	  -G option. XXX - so far, this is the only place that function is used

subst.c
	- shell_expand_word_list: before calling make_internal_declare, add
	  'G' to the options list if W_CHKLOCAL is set in the word's flags.
	  This makes builtins like `readonly' that modify local variables in
	  a function behave the same for scalar and array variables

				   1/11
				   ----
parse.y
	- shell_getc: move code that decides whether to append a space to an
	  alias expansion here from mk_alexpansion, so we can inhibit adding
	  a space if we're currently parsing a single or double quoted string

				   1/12
				   ----

parse.y
	- clear_string_list_expander: take a pointer to an alias that's about
	  to be freed and make sure there aren't any pointers to it in the
	  list of pushed strings. If there are, zero it out in the pushed
	  string list to avoid referencing freed memory in pop_string()

alias.c
	- free_alias_data: if an alias being freed is currently being expanded,
	  call clear_string_list_expander to remove references to it from the
	  list of pushed strings

				   1/14
				   ----
pcomplib.c
	- progcomp_search: add code to look up an alias for the CMD argument
	  and return the completions for the first word of that alias if one
	  is found. Just a start at completing aliases, a much-requested
	  feature

pcomplete.h
	- COPT_LASTUSER: last flag value used by user-settable completion
	  options
	- PCOMP_RETRYFAIL, PCOMP_NOTFOUND: new #defines, possible return values
	  from programmable_completions in FOUNDP argument. Moved RETRYFAIL
	  define here from pcomplete.c to avoid collisions with user-settable
	  option values (COPT_*)

				   1/15
				   ----
pcomplete.c
	- programmable_completions: if we don't find any completions for a
	  command, and RETRY is 0, see if the command is a defined alias,
	  expand it, and try to expand the first word of the value as a
	  command, and find any programmable completions for it. Here right
	  now, could be moved to attempt_shell_completion later if we need
	  to do more analysis of the expanded line. We'll see how it works
	  in practice. (Disabled for now.)

				   1/16
				   ----
parse.y
	- grammar: when timing the null command, make sure to turn off the
	  flags in parser_state (PST_REDIRLIST) that make_simple_command sets
	  when given a NULL second argument, since it assumes that it's going
	  to turn those off when it gets the next word of the simple command
	  (which it never gets in this case).  Fixes bug reported by
	  Anti Räis <antirais@gmail.com>

				   1/19
				   ----
lib/readline/rltty.c
	- prepare_terminal_settings (termios/termio): if there is a function
	  bound to the VDISCARD character in the current keymap, set VDISCARD
	  to _POSIX_VDISABLE while readline is active. From a report from
	  Rhialto <rhialto@falu.nl>

				   1/22
				   ----
builtins/history.def
	- histtime: check whether or not localtime() returns NULL, and make
	  sure we only call strftime() with a valid struct tm. This can happen
	  when the timestamps in the history file overflow a time_t. Fixes bug
	  reported by Luke Dashjr <luke@dashjr.org>

bashline.c
	- edit_and_execute_command: if we're in vi editing mode, make sure
	  we end up in insert mode after executing the commands from the
	  edited file. This seems to be what other shells do. Report from
	  Stan Marsh <gazelle@xmission.com>

				   1/26
				   ----
bashline.c
	- command_word_completion_function: match alias and shell function
	  names case-insensitively if the readline completion-ignore-case
	  variable is set. Inspired by report from <odnehel@gmail.com>

lib/readline/display.c
	- update_line: when performing a dumb update after wrapping the line
	  (usually due to printing the prompt), make sure we adjust
	  _rl_last_c_pos if there are invisible characters in prompt lines
	  other than the first (we assume those invisible characters are in
	  the last line, which is nearly always the case). We adjust by the
	  total number of invisible chars less the number of invisible chars
	  in the first prompt line. From a report in
	  https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1745273

execute_cmd.c
	- execute_command_internal: if redirections attached to a compound
	  command fail, make sure we discard the `internal_fifos' unwind-
	  protect frame after freeing the copied fifo_list and before returning

				   1/30
				   ----
lib/readline/rlprivate.h
	- BRACK_PASTE_FINI: add \r to the end of the string to avoid problems
	  with the tty driver thinking the cursor was in the wrong position.
	  Fixes issue reported by Egmont Koblinger <egmont@gmail.com>

				   1/31
				   ----
lib/sh/zread.c
	- zread,zreadintr: call check_signals() before calling read() to
	  minimize the race window between signal delivery, signal handling,
	  and a blocking read(2). Partial fix for FIFO read issue reported by
	  Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>

doc/{bash.1,bashref.texi}
	- shopt: document `assoc_expand_once' shell option

				    2/1
				    ---
config-top.h
	- DONT_REPORT_SIGTERM: define, so non-interactive shells will no
	  longer print termination messages for child processes killed by
	  SIGTERM

				    2/6
				    ---
lib/readline/text.c
	- rl_insert: don't attempt to optimize typeahead if we are only reading
	  a fixed number of characters (rl_num_chars_to_read > 0)

redir.c
	- redir_special_open: if the shell is restricted, return a
	  RESTRICTED_REDIRECT error for attempts to open /dev/tcp and /dev/udp
	  sockets.  Inspired by report from Blake Burkhart <bburky@bburky.com>
	- do_redirection_internal: if redir_open returns RESTRICTED_REDIRECT,
	  return that right away (instead of errno) so we can print a better
	  error message

				   2/11
				   ----
jobs.c
	- bgp_resize: fix problems with (pid_t) overflow when calculating new
	  size for table when js.c_childmax is near the limit of a pid_t
	  (e.g., 2**31 - 1 on a 32-bit system, or 2**63-1 on a system with
	  32-bit pid_t). Fixes hang reported by Natanael Copa
	  <ncopa@alpinelinux.org> based on his patch from 12/8.
	- bgp_resize: cap max table size for bgpids at MAX_CHILD_MAX (32768)

include/typemax.h
	- TYPE_MINIMUM, TYPE_MAXIMUM: updated definitions from coreutils-8.29,
	  silences some compiler warnings

				   2/14
				   ----
Makefile.in
	- maybe-clean: use cd and pwd -P to test whether or not two directory
	  names identical, since topdir = '.' and BUILD_DIR = full pathname
	  when you use something like `bash ./configure'. Problem reported by
	  Michael Felt <aixtools@gmail.com>

subst.c
	- split_at_delims: if SD_NOQUOTEDELIM is in the flags argument, don't
	  treat `'' and `"' as candidates for possible sequences of delimiters,
	  even if they're part of the delimiter set (the delims argument).
	  Fixes problem with completing lines like `foo --bar='quux baz' xx'
	  reported by Nick Patavalis <npat@efault.net>

				   2/15
				   ----
copy_cmd.c
	- copy_word_list: build the list in the right order, avoiding having
	  to reverse it at the end. Helps with long argument lists

shell.c
	- bind_args: build the argument list in the right order, avoiding
	  having to reverse it at the end.
	- bind_args: only call push_args to save argc and argv as BASH_ARGC
	  and BASH_ARGV if debugging mode is enabled (debugging_mode != 0).
	  Inspired by report from Ambrose Feinstein <ambrose@google.com>
	- bind_args: note that we've saved BASH_ARGC and BASH_ARGV by setting
	  bash_argv_initialized
	- shell_reinitialize: reset bash_argv_initialized back to 0 so
	  BASH_ARGV and BASH_ARGC will be recreated if we're in debugging mode

variables.c
	- save_bash_argv: new function, initializes BASH_ARGV and BASH_ARGC
	  from the saved positional parameters
	- init_bash_argv: initialize BASH_ARGV and BASH_ARGC if
	  bash_argv_initialized == 0

builtins/shopt.def
	- shopt_set_debug_mode: if we're turning on debug mode, initialize
	  BASH_ARGC and BASH_ARGV if bash_argv_initialized == 0

				   2/16
				   ----
execute_cmd.c
	- execute_function: make sure BASH_ARGV and BASH_ARGC are initialized
	  before calling push_args (and before calling remember_args)

builtins/source.def
	- source_builtin: make sure BASH_ARGV and BASH_ARGC are initialized
	  before calling push_args (and before calling remember_args)

builtins/evalfile.c
	- _evalfile: if the shell compatibility level is 44 or lower, make
	  sure BASH_ARGV and BASH_ARGC are initialized before calling
	  array_push

builtins/shopt.def
	- compat44: new shell option. This will be the last compatXX option

doc/{bash.1,bashref.texi}
	- compat44: document new shell option

				   2/21
				   ----
builtins/common.h
	- ISOPTION: check s[1] before s[2] to avoid out of bound reads. Fixes
	  bug reported by jeremy@feusi.co

input.h
	- B_SHAREDBUF: new flag for buffered input fds, indicates that this
	  fd shares its b_buffer with another fd

input.c
	- duplicate_buffered_stream: when duplicating *from* the buffer
	  corresponding to bash input, make sure the new buffer has B_SHAREDBUF
	  in the flags, because copy_buffered_stream copies pointers
	- duplicate_buffered_stream: if the buffer being copied to has the
	  B_SHAREDBUF flag set, make sure the b_buffer doesn't get freed.
	  Fixes use-after-free bug reported by jeremy@feusi.co
	- save_bash_input,close_buffered_stream: make sure a buffer with
	  B_SHAREDBUF set has its b_buffer set to NULL before calling
	  free_buffered_stream

				   2/24
				   ----
subst.c
	- parameter_brace_expand_error: add parameter saying whether or not
	  we are checking whether value is null, so we can have different
	  error messages for ${x:?} and ${x?}. Report and fix from
	  don fong <dfong@dfong.com>

				    3/5
				    ---
lib/readline/bind.c
	- _rl_read_file: instead of calling stat/open on the passed filename,
	  use open/fstat to avoid one possible filename translation and close
	  a small (benign) race condition. Report and fix from Roy Ivy
	  <roy.ivy.iii@gmail.com>

				   3/11
				   ----
variables.c
	- makunbound: if new variable localvar_unset is non-zero, mark local
	  vars in previous scopes as invisible and unset so they will show
	  up as unset until that previous scope returns (similar to how	local
	  variables in the current local scope are handled). localvar_unset
	  is currently set to 0 with no way for a script to change its value.
	  Eventually there will be an option to modify it.  From a bug-bash
	  discussion started by Nikolai Kondrashov <spbnick@gmail.com> back
	  on 2/11/2018

				   3/13
				   ----
subst.c
	- expand_word_list_internal: short-circuit and exit right away if a
	  variable assignment preceding a special builtin fails in posix mode
	- expand_word_list_internal: if a variable assignment precedes an
	  empty command name (after expansion), fix to exit right away when
	  the shell is in posix mode

				   3/15
				   ----
doc/{bash.1,bashref.texi}
	- Add text to Pathname Expansion clarifying that a slash must be
	  matched by a slash in the pattern when matching pathnames, but
	  not in other matching contexts. Suggested by <stormy1777@yahoo.com>

builtins/common.c
	- read_octal: allow octal numbers greater than 777 to accommodate
	  modes and umasks that include sticky/setuid/setgid bits. Report
	  and fix from Martijn Dekker <martijn@inlv.org>

				   3/19
				   ----
lib/readline/bind.c
	- rl_generic_bind: make sure we only assign to prevkey in the loop
	  if the key sequence index is > 0, so ic is valid. Fixes bug
	  reported by Koichi Murase <myoga.murase@gmail.com>

builtins/read.def
	- read_builtin: be slightly less aggressive checking for timeouts and
	  SIGALRM: if we successfully read a character, don't check for a
	  timeout until we store or process it. Fixes timing problem
	  reported by Rob Foehl <rwf@loonybin.net>

				   3/22
				   ----
sig.c
	- termsig_handler: add a call to exit(1) after the kill, just in case
	  there are circumstances where the SIG_DFL signal handler is
	  ignored.  Report from Andrei Vagin <avagin@gmail.com>

				   3/25
				   ----
lib/readline/bind.c
	- _rl_function_of_keyseq_internal: new internal function thta takes a
	  length parameter to accommodate NUL in the key sequence. Patch from
	  Koichi Murase <myoga.murase@gmail.com>
	- rl_function_of_keyseq_len: new application-callable function that
	  takes a length parameter; otherwise equivalent to rl_function_of_keyseq.

lib/readline/readline.h
	- rl_function_of_keyseq_len: add extern declaration for new function

lib/readline/doc/rltech.texi
	- rl_function_of_keyseq_len: document new function interface

bashline.c
	- bash_execute_unix_command: use rl_function_of_keyseq_len to handle
	  key sequences with embedded NULs (\C-@). Fix from Koichi Murase
	  <myoga.murase@gmail.com>

lib/readline/bind.c
	- rl_bind_key_if_unbound,rl_bind_key_if_unbound_in_map: run the KEY
	  argument through rl_untranslate_keyseq to produce a symbolic sequence
	  that can encode \C-@.
	- rl_bind_keyseq_if_unbound_in_map: translate the key sequence in order
	  to accommodate symbolic key sequences; should be a no-op for `raw'
	  key sequences such as the arrow key seqeunces from terminfo. Change
	  from Koichi Murase <myoga.murase@gmail.com>

				    4/2
				    ---
jobs.c
	- wait_for: when setting the SIGINT signal handler to wait_sigint_handler
	  make sure we're not setting old_sigint_handler recursively, as we
	  can when running an external command in a trap we took after a
	  command exited due to SIGINT. We don't want to overwrite
	  old_sigint_handler here. Fixes bug reported by Dr. Werner Fink
	  <werner@suse.de>

execute_cmd.c
	- execute_disk_command: when there is a command_not_found_hook, make
	  sure the subshell turns off job control before running it, in case
	  it runs processes. We don't want it to manipulate process groups.
	  Fixes bug reported by �и�иллов �има <dk.1997-fast@yandex.ru>
	- execute_command_internal: make sure the command run by the `command'
	  builtin doesn't cause the ERR trap to be executed; wait for the
	  status to be returned by the command builtin. Fixes bug reported by
	  Martijn Dekker <martijn@inlv.org>

				    4/4
				    ---
subst.c
	- process_substitute: handle longjmp back to top_level and function
	  returns (return_catch) in the child process, like command
	  substitution, so we don't longjmp back to some arbitrary spot from
	  the `exit' or `return' builtins, or on an expansion error, like
	  the command timing code. Fixes bug reported by Basin Ilya
	  <basinilya@gmail.com>

				    4/6
				    ---
parse.y
	- read_token_word: when reading a matched pair of backquotes as part
	  of a word, treat it as quoted so the characters are read as a single
	  word, but do not let the presence of the backquote mark the word as
	  quoted. Fixes here-document delimiter bug reported by Denys Vlasenko
	  <dvlasenk@redhat.com>

				    4/7
				    ---
execute_cmd.c
	- execute_case_command: call quote_string_for_globbing with the
	  QGLOB_CTLESC flag for both quoted and unquoted words, so it will
	  remove CTLESC/CTLESC in all cases while converting other quoted
	  characters to use a preceding backslash. Bug reported by
	  Martijn Dekker <martijn@inlv.org>

				    4/9
				    ---
smatch.c
	- posix_cclass_only: helper function that checks whether a pattern has
	  only posix single-byte character classes ([:alpha:], etc.) or has
	  none at all
	- xstrmatch: if running in a multibyte locale, make sure to short-
	  circuit to the single-byte matching code only if there are no
	  unrecognized character class names, since the wide character ctype
	  functions allow locales to define their own character class names
	  (e.g., "hyphen"). Fixes issue reported by yangyajing <yyj_cqu@163.com>

				   4/10
				   ----
configure.ac,cross-build/qnx.cache
	- qnx: add a configure cache file for cross-building, treat qnx 7 like
	  qnx 6 in terms of cpp options. Fix from Brian Carnes
	  <bcarnes@google.com>

aclocal.m4
	- BASH_CHECK_DEV_STDIN: experimental change to test for /dev/stdin
	  independently of /dev/fd or /proc/self/fd. Suggested for QNX by
	  Brian Carnes <bcarnes@google.com>


				   4/11
				   ----
lib/glob/glob.c
	- glob_testdir: return -2 if DIR is a symlink, to differentiate it from
	  any other kind of non-directory file
	- glob_vector: if we have GX_ALLDIRS (globstar), we want to skip over
	  symlinks to directories, since we will pick up the real directory
	  later. Fixes incompatibility reported by Murukesh Mohanan
	  <murukesh.mohanan@gmail.com>

bashline.c
	- bash_execute_unix_command: changes to make READLINE_POINT apply to
	  characters instead of bytes when in a multibyte locale. Report and
	  fix from Koichi Murase <myoga.murase@gmail.com>

				   4/12
				   ----
builtins/evalstring.c
	- parse_and_execute_cleanup: now takes an argument which is the value
	  of running_trap at some point before parse_and_execute was called;
	  changed callers in sig.c, builtins/evalfile.c

builtins/common.h
	- parse_and_execute_cleanup: changed prototype

				   4/13
				   ----
builtins/evalstring.c
	- parse_and_execute_cleanup: if the argument holding the previous state
	  of running_trap is the same value as the current running_trap state,
	  don't call run_trap_cleanup: assume that there is a caller who will
	  take care of the cleanup after this returns. Fixes recursive trap
	  call on "eval return" reported by Martijn Dekker <martijn@inlv.org>

parse.y
	- read_a_line: if remove_quoted_newline is non-zero, indicating the
	  here-document delimiter is unquoted, we will be running the contents
	  of the here-document through word expansion and need to quote CTLESC
	  and CTLNUL in the input. Fixes bug with ^A in here document reported
	  by Jorge Alberto Baca Garcia <bacagarcia@me.com>

				   4/18
				   ----
pathexp.c
	- quote_string_for_globbing: make sure the QGLOB_CTLESC code handles
	  both CTLESC CTLESC and CTLESC CTLNUL in the same way. Fixes bug
	  reported by Martijn Dekker <martijn@inlv.org>

				   4/19
				   ----
execute_cmd.c
	- execute_command_internal: before executing any command in the current
	  shell, and before copying any existing FIFO list, call
	  reap_procsubs to unlink or close any process substitution pipes
	  associated with processes that have exited. Fixes hang in test suite
	  when trying to open a FIFO with no process having it open for
	  reading

				   4/26
				   ----
parse.y
	- read_token_word: if returning REDIR_WORD for a {id}>foo construct,
	  for example, make sure to assign the_word to yylval.word before
	  returning, in case a recursive call to the parser overwrites it
	  (e.g., when evaluating array indexes). From a message to
	  austin-group-l from Stephane Chazelas <stephane.chazelas@gmail.com>

lib/glob/sm_loop.c
	- BRACKMATCH: if we have an invalid character class in an otherwise
	  well-formed bracket expression, don't try to match each character
	  of the (invalid) class individually; just skip over the class and
	  move on.  From a message on the austin-group list from
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   4/27
				   ----
variables.c
	- push_exported_var,push_func_var,push_temp_var: make sure to set the
	  context correctly in the variable we bind in the previous (non-temp)
	  scope. Report from Martijn Dekker <martijn@inlv.org>

pathexp.c
	- unquoted_glob_pattern_p: a pattern that contains a backslash can
	  have it removed by the matching engine (since backslash is special
	  in pattern matching), so if the pattern contains a backslash, and
	  does not end in a backslash, we need to return true. Fixes bug
	  reported by Robert Elz <kre@bmunnari.OZ.AU>

lib/glob/glob_loop.c
	- INTERNAL_GLOB_PATTERN_P: same change to return TRUE for a backslash
	  that doesn't end the pattern

lib/sh/timeval.c
	- print_timeval: use locale_decpoint() instead of fixed `.' to print
	  decimal point. Bug report in austin-group email from Joerg Schilling
	  <Joerg.Schilling@fokus.fraunhofer.de>

lib/sh/clock.c
	- print_clock_t: use locale_depoint() in the same way as print_timeval

				   4/29
				   ----
subst.c
	- expand_cond_node: if special != 0, make sure to add QGLOB_CTLESC
	  to the flags passed to quote_string_for_globbing. Same issue as the
	  one with `case' fixed on 4/7, report from Martijn Dekker
	  <martijn@inlv.org>

				   4/30
				   ----
redir.c
	- do_redirection_internal: r_close_this: if the file descriptor is
	  already closed before the shell is asked to close it, make sure to
	  add an undo list redirect to make sure it stays closed. Report from
	  Martijn Dekker <martijn@inlv.org>

				    5/2
				    ---
variables.c
	- push_posix_temp_var: new function, takes the SHELL_VAR * passed as
	  an argument and uses the name and value to create a global variable
	- merge_temporary_env: if posixly_correct is set, call
	  push_posix_temp_var to create global variables, otherwise call
	  push_temp_var to preserve the old behavior. Right now, it's only
	  called when in posix mode, but that might change. This undoes the
	  change from 4/27 when in posix mode

				    5/3
				    ---
sig.c
	- struct that holds the terminating signal information has a new
	  field: whether that signal is expected to cause a core dump
	- termsig_handler: if the call to kill(2) doesn't kill the process,
	  we have a problem. If our pid is not 1, we just exit with status
	  128+sig (fake the sig exit status). If the pid is 1, we assume
	  we're in a Linux pid namespace and aren't allowed to send a signal
	  to ourselves. If we need to generate a core dump, we try to get
	  the kernel to SIGSEGV us by dereferencing location 0. If not, we
	  just exit with 128+sig. From a report and patch from Andrei Vagin
	  <avagin@virtuozzo.com>

				    5/4
				    ---
bashline.c
	- bash_execute_unix_command: make sure that parse_and_execute is called
	  with newly-allocated memory to avoid prematurely freeing the
	  command. Report and fix from Koichi Murase <myoga.murase@gmail.com>

				    5/7
				    ---
builtins/shopt.def
	- syslog_history: a shell option to control whether history is logged
	  to syslog; can be modified at runtime. Original patch from
	  Siteshwar Vashisht <svashisht@redhat.com>

config-top.h
	- SYSLOG_SHOPT: new configurable option, determines whether there is a
	  shell option to control syslogging history lines at runtime and sets
	  the default value of the option

bashline.c
	- syslog_history: new variable to control whether history lines are
	  sent to syslog; default value is the value of SYSLOG_SHOPT (or 1
	  if that's not defined)
	- bash_add_history: send history lines to syslog if syslog_history is
	  non-zero

				   5/10
				   ----

variables.c
	- push_var_context: if we are in Posix mode and manipulating the
	  temporary environment (temporary_env), implement behavior specified
	  in Posix interp 1009 and make sure that temporary assignments
	  preceding function calls modify the current environment *before*
	  the function is executed.

[bash-5.0-alpha frozen]

				   5/12
				   ----
execute_cmd.c
	- execute_in_subshell: subshells should set loop_level == 0, since
	  they are no longer "enclosed" by the loop, according to posix.
	  Report from Aeron.E. Wang <aeron.e.wang@gmail.com>

				   5/24
				   ----
Makefile.in
	- pkgconfigdir: don't fail installing bash.pc if this directory doesn't
	  exist or isn't writable -- there's no error in failing to install
	  something nothing will use
	- install-headers-dirs: creat $(pkgconfigdir) if it doesn't exist

lib/sh/shmbchar.c
	- utf8_mblen: replace with version from gnulib
	- utf8_mbstrlen: reimplement using utf8_mblen so it handles invalid
	  multibyte sequences in the same way as mbstrlen

lib/readline/mbutil.c
	- _rl_utf8_mblen: utf-8 specific version of mblen from gnulib

include/shmbutil.h
	- ADVANCE_CHAR,COPY_CHAR_P: do better job detecting end of string in
	  UTF-8 locales (should not be called with an empty string, but to
	  be safe)

				   5/25
				   ----
lib/sh/utf8.c
	- new file, utf-8-specific functions collected from other files

externs.h
	- extern declarations moved around for utf8.c

include/shmbutil.h
	- SADD_MBCHAR, SADD_MBQCHAR_BODY, ADVANCE_CHAR_P: if the locale is a
	  UTF-8 locale, don't bother with a call to mbrlen if the current
	  character cannot start a multibyte character

variables.c
	- push_var_context: only merge the temporary environment in posix mode
	  if we are executing a shell function (flags & VC_FUNCENV). Report
	  from Martijn Dekker <martijn@inlv.org>

lib/readline/mbutil.c
	- _rl_get_char_len: don't call mbrlen if we are in a UTF-8 locale and
	  the character cannot start a multibyte sequence

builtins/read.def
	- read_builtin: if mb_cur_max > 1, call read_mbchar only if we're not
	  in a utf-8 locale or, if we are, the character we just read indicates
	  the start of a multibyte sequence

subst.c
	- string_extract_verbatim: don't call MBRLEN if we're in a utf-8
	  locale and the current character can't start a multibyte sequence
	- setifs: don't call MBRLEN if we're in a utf-8 locale and the first
	  character of $IFS can't start a multibyte sequence

lib/readline/kill.c
	- rl_bracketed_paste_begin: make sure we return 0 here if rl_insert_text
	  returns the right number of characters inserted to be consistent
	  with other functions. Returns 1 otherwise. Report and fix from
	  Gabe Krabbe <gabe@rtfs.de> back in March, 2018

lib/readline/readline.c
	- rl_subseq_result: make sure r is < 0 before checking map[ANYOTHERKEY]
	  to see if we shadowed a key that should now be tried

				   5/27
				   ----
variables.c
	- assign_aliasvar: perform same validity check on subscript assignment
	  as alias builtin performs on name argument. Bug report from
	  Mike Jonkmans <bashbug@jonkmans.nl>

				   5/29
				   ----
builtins/setattr.def
	- set_var_attribute: we should not propagate a variable assignment
	  preceding a builtin back to the calling environment unless the
	  shell is in posix mode. Since previous versions of the shell do
	  this, setting the shell compatibility level to 44 or less will
	  continue the propagation behavior

				    6/1
				    ---
lib/readline/histexpand.c
	- history_tokenize_word: as part of teaching history tokenization more
	  and more about shell syntax, allow command and process subsitution
	  and extended globbing patterns to appear within a word being
	  tokenized and not just at the beginning. Fixes bug reported back in
	  2/2017 by ecki@tofex.de

bashhist.c
	- load_history: use HISTSIZE_DEFAULT (still defaults to "500") to set
	  the initial value of $HISTSIZE. HISTSIZE_DEFAULT can be overridden
	  in config-top.h

				    6/4
				    ---
configure.ac
	- make sure we link against an external readline library that's at
	  least version 8

				    6/8
				    ---
pcomplete.h
	- INITIALWORD: internal compspec name for programmable completion on
	  the initial (usually the command) word

bashline.c
	- attempt_shell_completion: if we are in a command position and the
	  user has defined a compspec for INITIALWORD, use programmable
	  completion to complete command words. Original patch from
	  Luca Boccassi <bluca@debian.org>

lib/readline/doc/rluser.texi,builtins/complete.def,doc/bash.1
	- make it clearer that -D takes precedence over -E when supplied as
	  options to `complete', not when they are applied during completion

builtins/complete.def
	- complete_builtin,compgen_builtin: add support for -I option
	- print_one_completion,print_compopts: display -I when appropriate

lib/readline/doc/rluser.texi,doc/bash.1
	- complete,compgen: document new -I option and its effect

				   6/10
				   ----
lib/readline/histfile.c
	- read_history_range: don't apply the heuristic and try to append a
	  history line to an existing history entry if we don't have any
	  history entries. Bug and fix from Edward Huff <ejhuff@gmail.com>

				   6/12
				   ----
bashline.c
	- attempt_shell_completion: don't all the programmable completion for
	  INITIALWORD if programmable completion is disabled
	- attempt_shell_completion: make sure in_command_position remains set
	  for an empty command word on an otherwise blank line, making the
	  presence of assignment statements optional.  Report from
	  Luca Boccassi <bluca@debian.org>

				   6/20
				   ----
lib/malloc/malloc.c
	- morecore,internal_malloc,internal_free: requests for more than
	  128K bytes (defined as MMAP_THRESHOLD and saved in the new
	  malloc_mmap_threshold variable) are now satisfied via mmap and
	  freed via munmap. We only use mmap if we have mmap and MAP_ANON
	  (or MAP_ANONYMOUS). These blocks are not available for splitting
	  or coalescing, so every request for 128K bytes or smaller is
	  satisfied via sbrk(). We don't use mremap for realloc yet, but
	  we could in the future

lib/malloc/mstats.h
	- malloc_stats: the malloc stats now include the number of calls to
	  mmap and the total number of bytes requested via mmap. The number
	  of calls to munmap is captured in each bucket's lesscore count

lib/malloc/stats.c
	- print_malloc_stats: now prints an indication of where the change from
	  sbrk to mmap takes place, and prints number of mmap calls and total
	  number of bytes allocated using mmap

				   6/22
				   ----
variables.c
	- get_bashargcv: new dynamic "fetch" variable for BASH_ARGV and
	  BASH_ARGC, for backwards compatibility: if a script makes a
	  reference to either variable at the top level (not in a shell
	  function) without enabling debugging mode and not having initialized
	  the variable previously (using a simple semaphore), create the
	  variables

				   6/25
				   ----
configure.ac
	- opt_bash_malloc: bash malloc no longer disabled for systems that
	  require eight-bit alignment; the bash malloc has had this for a
	  long time

				    7/4
				    ---
bashline.c
	- pre_process_line: if command-oriented history is enabled, and the
	  line being expanded is the second or later in a multi-line command,
	  and we know the command is being saved as the current history entry,
	  decrease history_length before calling history_expand so references
	  like !! refer to the previous history entry as usual

lib/readline/histexpand.c
	- history_quoting_state: new variable, can be set by calling
	  application before calling history_expand to note that the string
	  being expanded is part of a quoted string. Can be set to a single
	  quote, a double quote, or 0 (no quoting)
	- history_expand: look at history_quoting_state and honor the
	  single-quote setting by not expanding any initial portion of the
	  line before the closing single quote. This allows history expansions
	  to be performed on a line containing a closing single quote if they
	  appear after the single quote

lib/readline/history.h
	- history_quoting_state: extern declaration

bashhist.c
	- bash_history_inhibit_expansion: if history_quoting_state indicates
	  that this string is single-quoted, skip over the single-quoted
	  portion and determine whether or not the portion after the
	  quoted string needs to be inhibited from history expansion

parse.y
	- shell_getc: set history_quoting_state based on the contents of the
	  current delimiter before calling pre_process_line

				    7/6
				    ---
lib/readline/doc/hsuser.texi
	- describe the default behavior of backslash and single and double
	  quotes

lib/readline/doc/hstech.texi
	- history_quoting_state: describe effect of setting this variable
	- history_quotes_inihibit_expansion: expand the description to include
	  the default quoting behavior that setting this variable enables

				    7/9
				    ---
support/man2html.c
	- unescape: use memmove instead of strcpy to handle overlapping strings
	  Report and fix from Bernhard M. Wiedemann <bwiedemann@suse.de>

lib/sh/getenv.c
	- getenv: check that environ is non-NULL before looking through it.
	  Report and fix from Keeley Hoek <keeley@hoek.io>

				   7/12
				   ----
braces.c
	- mkseq: use better integer overflow handling for systems with 32-bit
	  ints and 64-bit intmax_ts. Bug reported by Simon Wörner
	  <mail@simon-woerner.de> as the result of fuzzing

builtins/declare.def
	- declare_internal: make sure bind_variable returns non-NULL when
	  setting attributes for a variable named as an argument to declare
	  that also appears in the temporary environment (and is a nameref).
	  Bug reported by Simon Wörner <mail@simon-woerner.de as the
	  result of fuzzing

variables.c
	- bind_variable_internal: if we're assigning through a nameref, don't
	  create a variable with an invalid name under any circumstances

builtins/common.c
	- get_job_spec: make sure to return NO_JOB if atoi() returns < 0 due
	  to integer overflow.
	  Bug reported by Simon Wörner <mail@simon-woerner.de as the
	  result of fuzzing

				   7/13
				   ----
execute_cmd.c
	- execute_in_subshell: don't call set_sigint_handler if the subshell
	  is asynchronous, since it undoes the signal handler installed by
	  setup_async_signals. Fixes bug reported by Daniel Mills
	  <danielmills1@gmail.com>

parse.y,externs.h
	- reset_readahead_token: new convenience function for the rest of
	  the shell, resets token_to_read if it's a newline (as it will be
	  after reset_parser is called)

eval.c
	- reader_loop: if we're just going to execute one command, make sure
	  the read-ahead token isn't set to something that will result in a
	  NULL command (by calling reset_readahead_token), since the code
	  will take that as the one command and set EOF_Reached

				   7/15
				   ----
doc/{bash.1,bashref.texi}
	- indirect expansion: clarify that the expansion works on parameters,
	  not just variables (NAMEs). Suggested by konsolebox
	  <konsolebox@gmail.com>

				   7/16
				   ----
doc/{bash.1,bashref.texi}
	- INSIDE_EMACS: document its effect on line editing

				   7/17
				   ----
lib/readline/{readline.c,rlprivate.h}
	- _rl_eof_found: new variable, private to the readline library, that
	  indicates whether the current call to readline() will return NULL
	  because we read EOF

lib/readline/rltty.c
	- rl_deprep_terminal: if bracketed paste mode is active, the last
	  character of the string to disable it is \r (to avoid confusing
	  the terminal driver about where the cursor is). In this case,
	  output a newline before returning so subsequent text (like the
	  `exit' bash prints) doesn't overwrite the prompt. Bug from
	  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=903936

variables.c
	- make_local_assoc_variable: add second argument like corresponding
	  local array function, to allow this function to return an existing
	  local array variable to the caller for the caller to handle

variables.h
	- make_local_assoc_variable: change function prototype to add second
	  arg

{subst.c,variables.c}
	- make_local_assoc_variable: change callers

builtins/declare.def
	- declare_internal: call make_local_assoc_variable with a non-zero
	  second arg to have it return an existing local array variable to be
	  flagged as an error. Fixes bug reported by Grisha Levit
	  <grishalevit@gmail.com>
	- declare_internal: call make_local_array_variable with unconditional
	  second argument of 1 for the same reason as above

				   7/18
				   ----
variables.c
	- bind_invalid_envvar: new function, takes invalid names from the
	  initial environment (names that are not valid shell identifiers) and
	  stores them in a separate hash table (invalid_env)
	- maybe_make_export_env: make sure to add names from invalid_env to
	  the export env
	- assign_in_env: for now, prevent variable names that aren't shell
	  identifiers from being added to the temporary environment. Addresses
	  issue raised by Grisha Levit <grishalevit@gmail.com>

test.c
	- unary_test: rearrange code slightly to avoid a wasted variable lookup
	  if the argument to -v is a subscripted array reference

				   7/19
				   ----
variables.c
	- nameref_transform_name: if a name doesn't resolve to a shell variable,
	  this function will check whether it resolves to a nameref that
	  points to a variable that hasn't been created yet

variables.h
	- nameref_transform_name: extern declaration

subst.c
	- do_compound_assignment: make sure that we follow any nameref chain
	  if the name passed resolves to a nameref that points to a variable
	  that doesn't exist. Fixes issue raised by Grisha Levit
	  <grishalevit@gmail.com>

builtins/declare.def
	- declare_internal: before calling any variant of make_local_variable,
	  make sure to perform any transformation of the name indicated by an
	  existing nameref. Fixes issue raised by Grisha Levit
	  <grishalevit@gmail.com>

				   7/20
				   ----
builtins/declare.def
	- declare_internal: if we are creating a global variable with -g, even
	  if we're not giving it a value, check for namerefs at the global
	  scope to avoid confusion with namerefs at the local (function) scope.

subst.c
	- expand_word_internal: if a double-quoted string expands to nothing,
	  make sure we note that for later by setting had_quoted_null, just
	  as we do for single-quoted empty strings

subst.[ch]
	- W_SAWQUOTEDNULL: new flag (replaces W_HASCTLESC, which is unused),
	  means that we saw a possibly-discarded quoted null while expanding
	  this word

subst.c
	- expand_word_internal: if expansion results in a non-empty word but
	  we saw a quoted null during expansion (had_quoted_null == 1), set
	  W_SAWQUOTED_NULL in the returned word
	- expand_word_internal: if a recursive call to param_expand comes back
	  with W_SAWQUOTEDNULL set in the resulting word, set had_quoted_null
	  to note it
	- parameter_brace_expand_rhs: if a recursive call to expand_word_internal
	  returns a non-quoted-null string (after an optional call to
	  string_list) make sure we pass the W_SAWQUOTEDNULL flag back to the
	  caller
	- word_list_split: if a word expands to nothing after expansion and
	  splitting, but we saw a quoted null during the expansion
	  (W_SAWQUOTEDNULL), return an empty word

				   7/25
				   ----

subst.c
	- do_compound_assignment: if creating a local variable, make sure to
	  set `newname' to the name of the variable returned from find_variable,
	  since that follows namerefs. Fixes issue raised by Grisha Levit
	  <grishalevit@gmail.com>

				   7/29
				   ----
subst.c
	- get_var_and_type: if VALUE is NULL, check before calling dequote_string.
	  Report and fix from Grisha Levit <grishalevit@gmail.com>

				   7/30
				   ----
variables.c
	- make_local_{array,assoc}_variable: make sure we're not trying to
	  inherit a value from an incompatible array type. Fixes issue raised
	  by Grisha Levit <grishalevit@gmail.com>
	- nameref_transform_name: if we're trying to resolve a nameref that
	  will be used to create a local variable, make sure the nameref is
	  at the same variable scope. Report from Grisha Levit
	  <grishalevit@gmail.com>

				    8/2
				    ---
array.c
	- array_subrange: change to use string_list_pos_params after creating a
	  WORD_LIST from the array slice, like assoc_subrange does

subst.c
	- parameter_brace_substring: since assoc_subrange and array_subrange
	  both call string_list_pos_params now, treat the results the same as
	  the VT_POSPARAMS case (pos_params also calls string_list_pos_params).
	  Fixes behavior difference between ${a[@]:sub} and ${@:sub} reported
	  by Ilkka Virta <itvirta@iki.fi>

				    8/3
				    ---
array.c
	- array_patsub: rewrite to work in terms of a WORD_LIST * and call
	  string_list_pos_params on the result to be consistent with the
	  expansions of ${@/pat/rep} and ${*/pat/rep}

assoc.c
	- assoc_patsub: rewrite to work in terms of a WORD_LIST * and call
	  string_list_pos_params on the result to be consistent with the
	  expansions of ${@/pat/rep} and ${*/pat/rep}

subst.c
	- parameter_brace_patsub: change how return value of {array,assoc}_patsub
	  is treated to make it identical to pos_params_pat_subst, since they
	  all call string_list_pos_params now
	- expand_string_for_pat: make sure we preserve the value of
	  expand_no_split_dollar_star instead of just unconditionally setting
	  it back to 0 in case it was 1 before this function was called

				    8/6
				    ---
array.c
	- array_modcase: rewrite to work in terms of a WORD_LIST * and call
	  string_list_pos_params on the result to be consistent with the
	  expansions of ${@,,} and ${*,,}

assoc.c
	- assoc_modcase: rewrite to work in terms of a WORD_LIST * and call
	  string_list_pos_params on the result to be consistent with the
	  expansions of ${@,,} and ${*,,}

subst.c
	- parameter_brace_casemod: change how return value of {array,assoc}_modcase
	  is treated to make it identical to pos_params_modcase, since they
	  all call string_list_pos_params now

				    8/8
				    ---
builtins/declare.def
	- declare_internal: if we are making local variables, and not dealing
	  with the nameref attribute, make sure that any nameref variable we
	  followed when resolving the name given was at the same variable
	  context. If not, we just want to make or use a local variable with
	  the name passed; if so, we want to use the nameref value as the
	  variable name. Report from Grisha Levit <grishalevit@gmail.com>

				    8/9
				    ---
configure.ac
	- globasciiranges: RRI now on by default, must be turned off explicitly
	  at configure time or runtime with `shopt -u globasciiranges'

				   8/14
				   ----
variables.c
	- dispose_saved_dollar_vars: decrement stack pointer before looking
	  for saved positional parameters to dispose; stack pointer always
	  points to the first unused slot

				   8/15
				   ----
variables.c
	- dollar_arg_stack: now a stack of struct saved_dollar_vars, which has
	  an array for the first ten (dollar_vars) and a WORD_LIST * for the
	  remaining (rest_of_args). Fixes performance issue with function calls
	  and large numbers of positional parameters raised by
	  Bize Ma <binaryzebra@gmail.com>
	- {save,restore,free,free_saved}_dollar_vars: new functions to manage
	  dollar_vars and dollar_arg_stack members. Need to keep these in sync
	  with whatever remember_args does
	- push_dollar_vars: use save_dollar_vars, which just copies pointers,
	  and directly assign rest_of_args, without copying the words, to the
	  dollar_arg_stack entry. Have to clear dollar_vars and rest_of_args
	  with the assumption that callers will call remember_args(args, 1)
	  immediately following
	- pop_dollar_vars: free current positional parameters and restore old
	  ones from pointers saved in dollar_arg_stack, making sure to
	  invalidate any cached value for "$@"
	- dispose_saved_dollar_vars: free saved pointers from current index
	  into dollar_arg_stack

doc/{bash.1,bashref.texi}
	- POSIXLY_CORRECT: make sure to note that bash makes sure this variable
	  is set when posix mode is enabled

				   8/17
				   ----
{jobs,nojobs}.c
	- set_jobs_list_frozen: set jobs_list_frozen to a particular value.
	  Intended to save and restore the value around code sections instead
	  of unconditionally unfreezing it.

jobs.h
	- set_jobs_list_frozen: extern declaration

execute_cmd.c
	- execute_pipeline: if lastpipe is enabled, save and restore the
	  value of jobs_list_frozen using freeze_jobs_list/set_jobs_list_frozen
	  to avoid problems with race conditions and nested pipelines
	  causing jobs to be removed from the jobs table. Fixes savannah issue
	  https://savannah.gnu.org/support/index.php?109541 reported by
	  Björn Kautler <vampire0>

				   8/24
				   ----
execute_cmd.c
	- lastpipe_cleanup: call set_jobs_list_frozen instead of
	  unfreeze_jobs_list
	- execute_pipeline: set up lastpipe_cleanup with old value of
	  jobs_list_frozen

				    9/3
				    ---
builtins/printf.def
	- getuintmax,getfloatmax: on a conversion error, return as much of the
	  value as we were able to convert instead of 0. Fixes bug reported
	  by Robert Elz <kre@bmunnari.OZ.AU>

				    9/4
				    ---
lib/readline/text.c,lib/readline/rlprivate.h
	- _rl_backward_char_internal: new function, guts of rl_backward_char
	  and rl_backward_byte, not currently used there

lib/readline/vi_mode.c
	- _rl_vi_advance_point: new function, move point forward by one
	  character, handling multibyte locales and characters and the end
	  of line semantics
	- _rl_vi_backup_point: new function, move point backward by one
	  character, handling multibyte locales and characters
	- rl_vi_eword,rl_vi_eWord: use rl_vi_advance_point instead of a simple
	  increment to handle multibyte characters.  Fixes bug reported by
	  Enrico Maria De Angelis <enricomaria.dean6elis@gmail.com>

				    9/5
				    ---
lib/readline/vi_mode.c
	- rl_vi_fword,rl_vi_fWord: use rl_vi_advance_point instead of a simple
	  increment to handle multibyte characters
	- rl_vi_bword,rl_vi_bWord: use rl_vi_backup_point instead of a simple
	  decrement (and _rl_vi_advance_point where necessary) to handle
	  multibyte characters
	- rl_vi_complete,_rl_vi_change_mbchar_case,_rl_vi_domove_motion_cleanup:
	  use _rl_vi_advance_point instead of simple rl_point increment
	- vi_delete_dispatch,vi_change_dispatch,vi_yank_dispatch: use
	  INCREMENT_POS instead of a simple increment to rl_mark to handle
	  multibyte characters
	- rl_vi_column: use _rl_forward_char_internal, starting with
	  rl_point == 0, to handle multibyte characters (Posix says `character
	  position', not index)

				    9/7
				    ---
configure.ac
	- changed release status to `beta'

				    9/9
				    ---
lib/readline/display.c
	- _rl_update_final: if the bottom line has zero characters and we are
	  on that line at column 0, don't bother with an additional \r\n.
	  Fixes redisplay nit reported by Per Bothner <per@bothner.com>


configure.ac
	- openbsd needs DEV_FD_STAT_BROKEN defined

[bash-5.0-beta frozen]

				   9/11
				   ----
builtins/exec.def
	- exec_builtin: make sure to sync the buffered stream where bash is
	  reading input (especially if it's fd 0) so a command exec'd by the
	  script can read the rest of stdin after the exec

				   9/15
				   ----
lib/readline/histexpand.c
	- history_tokenize_internal: if the event contains embedded newlines
	  (e.g., bash with command-oriented history and lithist), use them as
	  word delimiters, equivalent to space and tab, so they don't end up
	  as separate words. Fixes issue pointed out by Viktor Dukhovni
	  <ietf-dane@dukhovni.org>
	- history_tokenize_word: don't break if we get a newline (though we
	  shouldn't get one due to the loop in history_tokenize_internal
	- history_expand_internal: use newline as a whitespace character when
	  expanding by words, as we do with history_tokenize_internal

jobs.h
	- J_PIPEFAIL: new flag for `flags' element of job struct

jobs.c
	- stop_pipeline: if pipefail_opt set, newjob gets J_PIPEFAIL in its
	  flags word
	- raw_job_exit_status: use J_PIPEFAIL (setting of pipefail when job
	  created) instead of current setting of pipefail status to determine
	  how to compute exit status of pipeline. Tentative implementation of
	  Posix proposal

expr.c
	- exp0: don't call expr_bind_variable with a NULL string.  Fixes
	  fuzzing bug reported by Eduardo Bustamante <dualbus@gmail.com>
	- expr_bind_variable: don't try to do anything with a NULL or empty
	  LHS

				   9/16
				   ----
lib/readline/undo.c
	- rl_do_undo: before we release the undo list entry we've just
	  processed, make sure we avoid any pointer aliasing issues caused
	  by having the entry being removed as part of the undo list in
	  _rl_saved_line_for_history. Fixes fuzzing bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

				   9/17
				   ----
[bash-5.0-beta released]

				   9/18
				   ----
lib/readline/bind.c
	- name_and_keymap: new struct for keymap names and maps
	- builtin_keymap_names: static array of builtin keymap names and
	  maps; preparing for allowing applications to set the names of
	  keymaps they create; keymap_names is initially a pointer to
	  this array
	- _rl_get_keymap_by_name,_rl_get_keymap_by_map: new functions for
	  searching the keymap_names array and returning an index
	- rl_get_keymap_by_name, rl_get_keymap_name: rewritten in terms of
	  new functions above
	- rl_set_keymap_name (char *name, Keymap map): new function, set
	  name of MAP to NAME. NAME must not be builtin; MAP must not be one
	  of the builtin keymaps. Request and initial implementation from
	  Tom Tromey <tom@tromey.com>

lib/readline/readline.h
	- rl_set_keymap_name: new extern declaration for new public function

lib/readline/doc/rltech.texi
	- rl_set_keymap_name: add documentation

lib/readline/doc/rluser.texi
	- add text to `set keymap' description to note that applications
	  can add keymap names that can be used there

				   9/20
				   ----
parse.y
	- shell_getc: don't execute the alias hack (returning a space at the
	  end of the string) if we are parsing a command substitution that
	  starts with a double paren (subshell inside a comsub), in which
	  case the flags are PSH_DPAREN. Fixes fuzzing bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

lib/readline/isearch.c
	- _rl_isearch_dispatch: default case: make sure we check multibyte
	  char length when deciding whether to enlarge the search string
	  buffer, instead of using the old assumption. Fixes fuzzing bug
	  reported by Eduardo Bustamante <dualbus@gmail.com>

builtins/fc.def,execute_cmd.c
	- fixed some missing free()s uncovered by coverity. Report from
	  Siteshwar Vashisht <svashisht@redhat.com>

lib/glob/glob.c
	- glob_vector: make sure name_vector is initialized to NULL

lib/sh/{pathcanon,pathphys}.c
	- {pathcanon,pathphys}: use memmove instead of strcpy on a possibly-
	  overlapping region of memory

subst.c
	- parameter_list_transform: make sure to dispose the word list in all
	  cases before returning
	- parameter_brace_expand_rhs: make sure t1 is freed before returning
	  due to an invalid name resulting from an indirect expansion

support/man2html.c
	- fixed a couple of memory leaks

				   9/21
				   ----
subst.c
	- process_substitute: if we are part of a job control process chain
	  (pipeline_pgrp != shell_pgrp), have the child shell forked to run
	  the process substitution set pipeline_pgrp to its own PID,
	  effectively becoming a process group leader without changing
	  its own process group. Fixes stray SIGHUP issue reported by
	  Jeremy Townshend <jeremy.townshend@gmail.com>
 
				   9/23
				   ----
arrayfunc.c
	- assign_array_element: if we are assigning to an existing associative
	  array, and assoc_expand_once is set, allow `*' and `@' as subscripts.
	  Partial fix for report from Grisha Levit <grishalevit@gmail.com>

variables.c
	- bind_int_variable: if valid_array_reference (lhs) is not true,
	  make sure that the lhs is a valid identifier before assigning the
	  value

arrayfunc.c
	- valid_array_reference: allow blank subscripts. They are treated as
 	  `normal' keys for associative arrays and evaluate to 0 for indexed
	  arrays. More of fix for report from Grisha Levit
	  <grishalevit@gmail.com>

				   9/24
				   ----
bashline.c
	- restore_tilde: if the expanded length (xl) is longer than vl
	  we end up requesting a negative amount of memory (an extremely
	  large unsigned number). Just punt and return val in this case.
	  Fuzzing bug reported by Eduardo Bustamante <dualbus@gmail.com>
	- restore_tilde: make sure we return what the user typed if tilde
	  expansion fails

				   9/29
				   ----
builtins/shopt.def
	- uncomment `localvar_unset' option definition

doc/{bash.1,bashref.texi}
	- document `localvar_unset' shell option

arrayfunc.c
	- valid_array_reference: if we are parsing a subscript for an existing
	  associative array, the `assoc_expand_once' option is set, and the
	  VA_ONEWORD flag is set in FLAGS (meaning there should be nothing
	  following the closing `]'), don't call skipsubscript to find the
	  closing `]', use one that is at the end of the word. Part of fix for
	  issue reported by Grisha Levit <grishalevit@gmail.com>

builtins/{printf,set}.def
	- pass VA_ONEWORD as part of flags value everywhere valid_array_reference
	  is used

config-top.h
	- CHECKWINSIZE_DEFAULT: now 1, so check_window_size is on by default
	- HISTEXPAND_DEFAULT: new define, allows builder to enable or disable
	  history expansion by default at build time

doc/{bash.1,bashref.texi}
	- checkwinsize: document new default value

bashhist.h
	- HISTEXPAND_DEFAULT: don't define if it's already defined. Strict
	  POSIX mode continues to default to off

				   9/30
				   ----
lib/readline/input.c
	- win32_isatty: win32-specific changes from GDB. Patch submitted by
	  Tom Tromey <tom@tromey.com>, originally from Eli Zaretskii
	  <eliz@gnu.org>

				   10/1
				   ----
lib/readline/vi_mode.c
	- rl_vi_start_inserting: start an undo group so we can grab the text
	  inserted here as a single unit, avoiding any insert coalescing
	  performed by rl_insert_text. Report and fix from Richard Todd
	  <richard.w.todd@outlook.com>

				   10/3
				   ----
subst.c
	- parameter_brace_transform: if we're asked to display the attributes
	  of an unset variable, check that the variable exists even if
	  get_var_and_type returns NULL (it checks invisible_p). Requested by
	  Michal Pesa <pesathem@gmail.com>

lib/readline/kill.c
	- _rl_bracketed_text: new function, collects the text pasted in
	  bracketed paste mode and consumes the bracketed paste end marker;
	  returns the pasted text and its length
	- rl_bracketed_paste_begin: call _rl_bracketed_text to collect the
	  text

lib/readline/isearch.c
	- _rl_isearch_dispatch: set cxt->lastc to -7 if the input resolves to
	  rl_bracketed_paste_begin
	- _rl_isearch_dispatch: if cxt->lastc == -7, call _rl_bracketed_text
	  to collect the pasted text and add it to the accumulating search
	  string. Only works if ESC is not one of the isearch terminators.
	  Fixes issue reported in Debian bug report 891780,
	  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891780

				   10/5
				   ----
variables.c
	- push_posix_tempvar_internal: new function, body of push_func_var
	  with additional argument saying whether it's being called from a
	  function or (special) builtin code path
	- push_builtin_var: new function, calls push_posix_tempvar_internal
	  with second argument indicating builtin code path
	- push_func_var: now a stub that calls push_posix_tempvar_internal
	  with second argument indicating function code path
	- pop_scope: if called from a special builtin, call push_builtin_var
	  instead of push_func_var to do the right variable propagation

builtins/shopt.def
	- progcomp_alias: uncomment, make available to users

doc/{bash.1,bashref.texi},lib/readline/doc/rluser.texi
	- progcomp_alias: document shopt option, describe its use in
	  the section on programmable completion

trap.c
	- decode_signal: handle SIGRTMIN+n at runtime, with the `SIG' prefix
	  or without, case-insensitively if requested, and return SIGRTMIN+n.
	  These values could be different than what was available at compile
	  time. Report and patch from Rasmus Villemoes <rv@rasumsvillemoes.dk>

				   10/8
				   ----
execute_cmd.c
	- execute_command_internal: only set line_number from command->value.Subshell
	  if the type == cm_subshell; otherwise defer and set later

				   10/10
				   -----
examples/loadables/seq.c
	- seq: new loadable builtin, derived originally from coreutils:seq.c
	  but with very little of that code remaining

				   10/12
				   -----
trap.c
	- run_pending_traps,_run_trap_internal: honor evalnest_max and
	  increment/decrement evalnest accordingly, since trap actions
	  are processed as if run by `eval'. Feature suggsted by Mike
	  Gerwitz <mtg@gnu.org>

				   10/16
				   -----
expr.c
	- expr_skipsubscript: new function, calls skipsubscript with flags
	  similar to arrayfunc.c:valid_array_subscript if assoc_expand_once
	  is set and it looks like we've already expanded the subscript of
	  an associative array. Reported back on 8/27 by Grisha Levit
	  <grishalevit@gmail.com>
	- readtok: call expr_skipsubscript instead of skipsubscript

arrayfunc.c
	- valid_array_reference: call skipsubscript with a third arg computed
	  from the VA_NOEXPAND flag only if we're expanding an associative
	  array subscript -- we already figure out whether or not we are

[bumped release status to beta2]

				   10/20
				   -----
builtins/setattr.def
	- set_or_show_attributes: after isolating NAME, make sure to restore
	  the "[+]=" in case we need the word later. Issue pointed out by
	  Grisha Levit <grishalevit@gmail.com>

				   10/21
				   -----
lib/readline/search.c
	- noninc_search_from_pos: if we are supposed to be searching for a
	  pattern (vi mode), make sure to pass S to _hs_history_patsearch,
	  since that has any leading `^' stripped

lib/readline/histsearch.c
	- _hs_history_patsearch: if the search isn't anchored, put a `*' at
	  the beginning to force fnmatch to match anywhere in the line (could
	  look at this later to make a change to history_search_internal that
	  would avoid the need to add the leading `*')

subst.c
	- parameter_brace_expand_rhs: treat a failure to assign a variable with
	  a ${param:=value} expansion as an expansion error, and, in a non-
	  interactive posix-mode shell, exit the shell
	- param_expand: don't set W_SPLITSPACE for $* unless IFS is NULL;
	  consistent with other uses of W_SPLITSPACE

				   10/22
				   -----
doc/{bash.1,bashref.texi}
	- tweak description of bash conditional expressions to note that the
	  test and [ commands determine their behavior based on the number of
	  arguments. Suggested by Ilkka Virta <itvirta@iki.fi>

				   10/24
				   -----
execute_cmd.c
	- execute_simple_command: don't set $_ to NULL when executing a
	  command that forks; just leave it unchanged. Tweaked the documentation
	  slightly as a result. Inspired by report from Ricky Tigg
	  <ricky.tigg@gmail.com>

				   10/28
				   -----
redir.c
	- here_document_to_fd: make sure the temp files used to store here
	  documents are readable (and writable, where necessary) by the user.
	  This can happen in the unlikely case that someone decides to shoot
	  himself in the foot by setting the umask to 400. Issue originally
	  raised back in March by Stephane Chazelas
	  <stephane.chazelas@gmail.com>; fix inspired by Martijn Dekker
	  <martijn@inlv.org>

				   10/29
				   -----
lib/readline/terminal.c
	- bind_termcap_arrow_keys: bind the "kI" capability (what the Insert
	  keypad key outputs) to overwrite mode. Patch from Xose Vazquez Perez
	  <xose.vazquez@gmail.com>

				   10/30
				   -----
braces.c
	- mkseq: make sure to terminate result array before passing it to
	  strvec_dispose on an interrupt. Report and fix from Corbin Souffrant
	  <corbin.souffrant@gmail.com>

				   11/6
				   ----
trap.c
	- _run_trap_internal: if the signal shows up as SIG_CHANGED after
	  running the trap handler, check for terminating signals and run any
	  terminating signal handler indicates. Fixes issue reported by
	  Owen Stephens <owen@owenstephens.co.uk>

				   11/7
				   ----
execute_cmd.c
	- execute_builtin: don't merge the temporary environment when the
	  `return' builtin is being executed if it's being executed by the
	  `command' builtin, since that's supposed to inhibit the special
	  builtin properties. Part of POSIX conformance problems reported
	  by Martin Rehak <martin.rehak@oracle.com>

builtins/cd.def
	- bindpwd: if canonicalization fails when -P is specified (e.g. if the
	  directory name length exceeds PATH_MAX), reset dirname ($PWD value) =
	  to the_current_working_directory (Posix cd description, step 10.)
	  Part of POSIX conformance problems reported by Martin Rehak
	  <martin.rehak@oracle.com>

builtins/kill.def
	- kill_builtin: support -sSIG and -nSIG without requiring them to be
	  separate arguments. POSIX says a "conforming implementation" should
	  accept them.
	  Part of POSIX conformance problems reported by Martin Rehak
	  <martin.rehak@oracle.com>

				   11/8
				   ----
arrayfunc.c
	- array_value_internal: return NULL for invisible array variables.
	  Fixes issue with FUNCNAME sometimes returning invalid value reported
	  by Great Big Dot <greatbigdot@gmail.com>

builtins/cd.def
	- change_to_directory: if we are in posix mode, and the chdir to the
	  absolute pathname ($PWD/dirname) fails, return an error without
	  trying to use just `dirname' (posix cd step 10).
	  Part of POSIX conformance problems reported by Martin Rehak
	  <martin.rehak@oracle.com>

execute_cmd.c
	- execute_case_command: use expand_word_leave_quoted to expand the
	  word, then dequote the resulting string. This performs the
	  expansions in the order posix specifies.
	  Part of POSIX conformance problems reported by Martin Rehak
	  <martin.rehak@oracle.com>

subst.c
	- expand_word_unsplit: rewrite in terms of expand_word_leave_quoted
	- ifs_whitespace: new macro, Posix ifs whitespace (ISSPACE; member
	  of current locale's space char class)
	- ifs_whitesep: new macro, whitespace that is a member of $IFS; used
	  by list_string and get_word_from_string
	- list_string: use ifs_whitesep instead of spctabnl in case $IFS
	  contains whitespace characters that are not space, tab, or newline
	- get_word_from_string: use ifs_whitesep instead of spctabnl in case
	  $IFS contains whitespace characters that are not space, tab, or
	  newline.
	  Part of POSIX conformance problems reported by Martin Rehak
	  <martin.rehak@oracle.com>

				   11/9
				   ----
general.c
	- posix_initialize: enable the shift_verbose option when turning on
	  posix mode, and disable it when posix mode is disabled. From a
	  report by Eric Blake <eblake@redhat.com>

doc/bashref.texi
	- posix mode: note the effect of posix mode on shift_verbose

				   11/12
				   -----
subst.c
	- parameter_brace_expand: if parameter_brace_expand_word returns an
	  error, make sure to set TEMP = 0 (to note that the variable is unset).
	  From a report by Grisha Levit <grishalevit@gmail.com>
	- param_expand: if expanding $! when set -u is enabled, honor the
	  PF_IGNUNBOUND flag and just return NULL, relying on the caller to
	  take care of understanding that the variable is unset
	  From a report by Grisha Levit <grishalevit@gmail.com>	
	- parameter_brace_expand: if we are checking nullness, and we have a
	  valid array expansion, a quoted null string resulting from the array
	  expansion of a * or @ subscript satisfies the nullness check.
	  From a report by Grisha Levit <grishalevit@gmail.com>

				   11/14
				   -----
aclocal.m4
	- BASH_CHECK_LIB_TERMCAP: add last-ditch check for libncursesw, since
	  it's apparently the only curses library on some distributions.
	  Report from John Frankish <john.frankish@outlook.com>

				   11/16
				   -----
bashline.c
	- attempt_shell_completion: allow an initial word completion to
	  complete a partial first word (point appears in the middle of
	  the word) before resorting to command completion. Report and fix
	  from Luca Boccassi <bluca@debian.org>

[bash-5.0-beta2 frozen]

				   11/27
				   -----
bashline.c
	- attempt_shell_completion: better fix for problems with fix from
	  11/16. Report and fix from Tom Ryder <tom@sanctum.geek.nz>

expr.c
	- expr_skipsubscript: fix return type. Report and fix from
	  Andreas Schwab <schwab@linux-m68k.org>

				   11/29
				   -----
subst.c
	- quote_escapes_internal: refactored quote_escapes into a function
	  that takes an additional flag saying whether or not we are going
	  to split the result. If we are not, and CTLESC is in IFS, we quote
	  the CTLESC (ditto for CTLNUL) to prevent it being removed when the
	  string is dequoted.
	- quote_escapes: call quote_escapes_internal with FLAGS == 0
	- quote_rhs: new function, calls quote_escapes with FLAGS == PF_NOSPLIT2
	  so that a CTLESC will be quoted if CTLESC is in $IFS
	- parameter_brace_expand_word: call quote_rhs on the value of a variable
	  if PFLAGS includes PF_ASSIGNRHS, indicating that we will not be
	  splitting the word, but we will be dequoting it. Fixes bug reported
	  by Martijn Dekker <martijn@inlv.org>
	- param_expand: same change as for parameter_brace_expand_word

execute_cmd.c
	- execute_in_subshell: if we are running a trap (running_trap > 0),
	  turn off the SIG_INPROGRESS and SIG_CHANGED flags for that signal
	  by calling run_trap_cleanup and reset running_trap to 0 (watch the
	  second part!). Tagged for bash-5.1.

				   11/30
				   -----
lib/readline/doc/rltech.texi
	- rl_set_keymap_name: correct typo in the name; some updates to the
	  description that clarify usage. Report from <hirooih@gmail.com>

				   12/4
				   ----
aclocal.m4
	- BASH_FUNC_FNMATCH_EQUIV_FALLBACK: a test of whether fnmatch(3)
	  understands bracket equivalence classes ([=c=]) for characters
	  that collate with equal weights but are not identical

configure.ac,config.h.in
	- call BASH_FUNC_FNMATCH_EQUIV_FALLBACK and define
	  FNMATCH_EQUIV_FALLBACK to 1 if it can be used for equivalence
	  classes

				   12/5
				   ----
execute_cmd.c
	- eval_arith_for_expr,execute_arith_command,execute_cond_command: make
	  sure running_trap == 0 before we reset the_printed_command_except_trap
	  Report from Peng Yu <pengyu.ut@gmail.com>

lib/glob/smatch.c
	- _fnmatch_fallback_wc: new function, takes two wide characters c1 and
	  c2, converts them to a pattern ([[=c2=]]) and a string (c1) for
	  fnmatch to determine whether or not they are members of the same
	  equivalence class
	- collequiv_wc: call _fnmatch_fallback_wc if rangecmp_wc returns
	  non-zero if FNMATCH_EQUIV_FALLBACK is defined, so we know that
	  fnmatch understands equivalence classes. Another Posix test suite
	  issue from Martin Rehak <martin.rehak@oracle.com>

				   12/6
				   ----
redir.c
	- add missing cases to switch statements to shut up gcc

				   12/7
				   ----
builtins/set.def
	- find_minus_o_option: new helper function, returns index into
	  o_options given option name
	- minus_o_option_value,set_minus_o_option: use find_minus_o_option

general.c
	- new table of variables (currently all shopt options) that are
	  modified by going into and out of posix mode; num_posix_options()
	  returns the number of variables
	- get_posix_options: fill in a bitmap passed as an argument (or return
	  a new one) of values of posix-mode-modified variables in the table
	- set_posix_options: set values of posix-mode-modified variables from
	  the table using the passed bitmap for values

builtins/set.def
	- get_current_options: make the bitmap large enough to hold the options
	  in the set table and the table of posix-mode-modified variables; call
	  get_posix_options to fill in those values after the values from the
	  o_options table
	- set_current_options: call set_posix_options to reset the values of
	  the posix-mode-modified variables at the end of the bitmap, after
	  the o_options values. Fixes issue reported by PJ Eby
	  <pje@telecommunity.com>

				   12/9
				   ----
parse.y
	- select_command: add two additional productions to support select
	  commands without a word_list following the `in'. Fixes omission
	  reported by Martijn Dekker <martijn@inlv.org>

				   12/11
				   -----
variables.c
	- assign_in_env: don't allow namerefs in temporary environment
	  assignments to create variables with invalid names for export. Fixes
	  bug reported by Grisha Levit <grishalevit@gmail.com>

				   12/14
				   -----
parse.y
	- don't change last_command_exit_value in the 'error yacc_EOF' production
	  if the parser sets it to something non-zero; just make sure it
	  indicates an error. Fixes problem with unexpected EOF in eval
	  reported by Martijn Dekker <martijn@inlv.org>

				   12/17
				   -----
expr.c
	- exp2 -> expmuldiv

lib/sh/smatch.c
	- fnmatch: add extern declaration if FNMATCH_EQUIV_FALLBACK is being
	  used

hashlib.c
	- hash_string: add FNV offset as initial value for hash instead of
	  starting at 0, changes hash for associative arrays and requires a
	  bunch of changes to the "right" test suite files

variables.c
	- rseed: make it explicitly 32 bits; that's all we're interested in
	  anyway

				   12/18
				   -----

variables.c
	- brand: add some comments, make the constants explicitly 32 bits;
	  use signed 32-bit values for the intermediate calculations. The
	  algorithm is still minstd

[bash-5.0-rc1 frozen]

				   12/21
				   -----
doc/bash.1
	- }1: remove macro definition; it's outlived its bugfix purpose.
	  Report from Derek Schrock <dereks@lifeofadishwasher.com>

				   12/22
				   -----
subst.c
	- expand_arith_string: set W_NOTILDE in the flags so we don't perform
	  tilde expansion at all, even for the previously-special-case array
	  subscript expansion. Report from Bize Ma <binaryzebra@gmail.com>
	- expand_word_internal: take out Q_ARRAYSUB check for tilde expansion

				   12/26
				   -----
builtins/evalstring.c
	- parse_and_execute: if the eval builtin gets a parser error while
	  parsing a  string in posix mode, don't exit the shell if the eval
	  was run by the command builtin. report from Martijn Dekker
	  <martijn@inlv.org>

examples/loadables/{basename,dirname}.c
	- dirname_builtin: skip over any `--' ending the options.  Report from
	  Peng Yu <pengyu.ut@gmail.com>

				   12/27
				   -----
examples/loadables/mkdir.c
	- make_path: add argument noting whether or not the user specified -m;
	  only attempt the chmod on an existing directory if the user did so
	- make_path: when creating intermediate directories, perform the
	  mkdir (path, 0) and chmod separately as the posix text recommends

				   12/28
				   -----
parser.h
	- PST_COMMENT: new state, set when the shell is reading characters
	  until newline as part of comment processing

parse.y
	- shell_getc: don't return a space at the end of a token if the parser
	  is consuming a comment. Fixes bug reported by Harald van Dijk
	  <harald@gigawatt.nl>

				   12/31
				   -----
lib/glob/glob_loop.c
	- INTERNAL_GLOB_PATTERN_P: revert change from 4/27 that makes this
	  function return non-zero for a backslash in the string. Based on a
	  report from Tom Ryder <tom@sanctum.geek.nz>

[bash-5.0 frozen]