summaryrefslogtreecommitdiffstats
path: root/generic/tcl.h
blob: cb900960b54d3669178ab46b22e15c0a896e3769 (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
/*
 * tcl.h --
 *
 *	This header file describes the externally-visible facilities of the
 *	Tcl interpreter.
 *
 * Copyright (c) 1987-1994 The Regents of the University of California.
 * Copyright (c) 1993-1996 Lucent Technologies.
 * Copyright (c) 1994-1998 Sun Microsystems, Inc.
 * Copyright (c) 1998-2000 by Scriptics Corporation.
 * Copyright (c) 2002 by Kevin B. Kenny.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#ifndef _TCL
#define _TCL

/*
 * For C++ compilers, use extern "C"
 */

#ifdef __cplusplus
extern "C" {
#endif

/*
 * The following defines are used to indicate the various release levels.
 */

#define TCL_ALPHA_RELEASE	0
#define TCL_BETA_RELEASE	1
#define TCL_FINAL_RELEASE	2

/*
 * When version numbers change here, must also go into the following files and
 * update the version numbers:
 *
 * library/init.tcl	(1 LOC patch)
 * unix/configure.in	(2 LOC Major, 2 LOC minor, 1 LOC patch)
 * win/configure.in	(as above)
 * win/tcl.m4		(not patchlevel)
 * win/makefile.bc	(not patchlevel) 2 LOC
 * README		(sections 0 and 2, with and without separator)
 * macosx/Tcl.pbproj/project.pbxproj (not patchlevel) 1 LOC
 * macosx/Tcl.pbproj/default.pbxuser (not patchlevel) 1 LOC
 * macosx/Tcl.xcode/project.pbxproj (not patchlevel) 2 LOC
 * macosx/Tcl.xcode/default.pbxuser (not patchlevel) 1 LOC
 * macosx/Tcl-Common.xcconfig (not patchlevel) 1 LOC
 * win/README		(not patchlevel) (sections 0 and 2)
 * unix/tcl.spec	(1 LOC patch)
 * tools/tcl.hpj.in	(not patchlevel, for windows installer)
 * tools/tcl.wse.in	(for windows installer)
 * tools/tclSplash.bmp	(not patchlevel)
 */

#define TCL_MAJOR_VERSION   8
#define TCL_MINOR_VERSION   6
#define TCL_RELEASE_LEVEL   TCL_BETA_RELEASE
#define TCL_RELEASE_SERIAL  2

#define TCL_VERSION	    "8.6"
#define TCL_PATCH_LEVEL	    "8.6b2"

/*
 *----------------------------------------------------------------------------
 * The following definitions set up the proper options for Windows compilers.
 * We use this method because there is no autoconf equivalent.
 */

#ifndef __WIN32__
#   if defined(_WIN32) || defined(WIN32) || defined(__MINGW32__) || defined(__BORLANDC__) || (defined(__WATCOMC__) && defined(__WINDOWS_386__))
#	define __WIN32__
#	ifndef WIN32
#	    define WIN32
#	endif
#	ifndef _WIN32
#	    define _WIN32
#	endif
#   endif
#endif

/*
 * STRICT: See MSDN Article Q83456
 */

#ifdef __WIN32__
#   ifndef STRICT
#	define STRICT
#   endif
#endif /* __WIN32__ */

/*
 * Utility macros: STRINGIFY takes an argument and wraps it in "" (double
 * quotation marks), JOIN joins two arguments.
 */

#ifndef STRINGIFY
#  define STRINGIFY(x) STRINGIFY1(x)
#  define STRINGIFY1(x) #x
#endif
#ifndef JOIN
#  define JOIN(a,b) JOIN1(a,b)
#  define JOIN1(a,b) a##b
#endif

/*
 * A special definition used to allow this header file to be included from
 * windows resource files so that they can obtain version information.
 * RC_INVOKED is defined by default by the windows RC tool.
 *
 * Resource compilers don't like all the C stuff, like typedefs and function
 * declarations, that occur below, so block them out.
 */

#ifndef RC_INVOKED

/*
 * Special macro to define mutexes, that doesn't do anything if we are not
 * using threads.
 */

#ifdef TCL_THREADS
#define TCL_DECLARE_MUTEX(name) static Tcl_Mutex name;
#else
#define TCL_DECLARE_MUTEX(name)
#endif

/*
 * Tcl's public routine Tcl_FSSeek() uses the values SEEK_SET, SEEK_CUR, and
 * SEEK_END, all #define'd by stdio.h .
 *
 * Also, many extensions need stdio.h, and they've grown accustomed to tcl.h
 * providing it for them rather than #include-ing it themselves as they
 * should, so also for their sake, we keep the #include to be consistent with
 * prior Tcl releases.
 */

#include <stdio.h>

/*
 *----------------------------------------------------------------------------
 * Support for functions with a variable number of arguments.
 *
 * The following TCL_VARARGS* macros are to support old extensions
 * written for older versions of Tcl where the macros permitted
 * support for the varargs.h system as well as stdarg.h .
 *
 * New code should just directly be written to use stdarg.h conventions.
 */

#include <stdarg.h>
#ifndef TCL_NO_DEPRECATED
#    define TCL_VARARGS(type, name) (type name, ...)
#    define TCL_VARARGS_DEF(type, name) (type name, ...)
#    define TCL_VARARGS_START(type, name, list) (va_start(list, name), name)
#endif
#if defined(__GNUC__) && (__GNUC__ > 2)
#   define TCL_FORMAT_PRINTF(a,b) __attribute__ ((__format__ (__printf__, a, b)))
#else
#   define TCL_FORMAT_PRINTF(a,b)
#endif

/*
 *----------------------------------------------------------------------------
 * Macros used to declare a function to be exported by a DLL. Used by Windows,
 * maps to no-op declarations on non-Windows systems. The default build on
 * windows is for a DLL, which causes the DLLIMPORT and DLLEXPORT macros to be
 * nonempty. To build a static library, the macro STATIC_BUILD should be
 * defined.
 *
 * Note: when building static but linking dynamically to MSVCRT we must still
 *       correctly decorate the C library imported function.  Use CRTIMPORT
 *       for this purpose.  _DLL is defined by the compiler when linking to
 *       MSVCRT.
 */

#if (defined(__WIN32__) && (defined(_MSC_VER) || (__BORLANDC__ >= 0x0550) || defined(__LCC__) || defined(__WATCOMC__) || (defined(__GNUC__) && defined(__declspec))))
#   define HAVE_DECLSPEC 1
#   ifdef STATIC_BUILD
#       define DLLIMPORT
#       define DLLEXPORT
#       ifdef _DLL
#           define CRTIMPORT __declspec(dllimport)
#       else
#           define CRTIMPORT
#       endif
#   else
#       define DLLIMPORT __declspec(dllimport)
#       define DLLEXPORT __declspec(dllexport)
#       define CRTIMPORT __declspec(dllimport)
#   endif
#else
#   define DLLIMPORT
#   if defined(__GNUC__) && __GNUC__ > 3
#       define DLLEXPORT __attribute__ ((visibility("default")))
#   else
#       define DLLEXPORT
#   endif
#   define CRTIMPORT
#endif

/*
 * These macros are used to control whether functions are being declared for
 * import or export. If a function is being declared while it is being built
 * to be included in a shared library, then it should have the DLLEXPORT
 * storage class. If is being declared for use by a module that is going to
 * link against the shared library, then it should have the DLLIMPORT storage
 * class. If the symbol is beind declared for a static build or for use from a
 * stub library, then the storage class should be empty.
 *
 * The convention is that a macro called BUILD_xxxx, where xxxx is the name of
 * a library we are building, is set on the compile line for sources that are
 * to be placed in the library. When this macro is set, the storage class will
 * be set to DLLEXPORT. At the end of the header file, the storage class will
 * be reset to DLLIMPORT.
 */

#undef TCL_STORAGE_CLASS
#ifdef BUILD_tcl
#   define TCL_STORAGE_CLASS DLLEXPORT
#else
#   ifdef USE_TCL_STUBS
#      define TCL_STORAGE_CLASS
#   else
#      define TCL_STORAGE_CLASS DLLIMPORT
#   endif
#endif

/*
 * The following _ANSI_ARGS_ macro is to support old extensions
 * written for older versions of Tcl where it permitted support
 * for compilers written in the pre-prototype era of C.
 *
 * New code should use prototypes.
 */

#ifndef TCL_NO_DEPRECATED
#   undef _ANSI_ARGS_
#   define _ANSI_ARGS_(x)	x
#endif

/*
 * Definitions that allow this header file to be used either with or without
 * ANSI C features.
 */

#ifndef INLINE
#   define INLINE
#endif

#ifdef NO_CONST
#   ifndef const
#      define const
#   endif
#endif
#ifndef CONST
#   define CONST const
#endif

#ifdef USE_NON_CONST
#   ifdef USE_COMPAT_CONST
#      error define at most one of USE_NON_CONST and USE_COMPAT_CONST
#   endif
#   define CONST84
#   define CONST84_RETURN
#else
#   ifdef USE_COMPAT_CONST
#      define CONST84
#      define CONST84_RETURN const
#   else
#      define CONST84 const
#      define CONST84_RETURN const
#   endif
#endif

#ifndef CONST86
#      define CONST86 CONST84
#endif

/*
 * Make sure EXTERN isn't defined elsewhere.
 */

#ifdef EXTERN
#   undef EXTERN
#endif /* EXTERN */

#ifdef __cplusplus
#   define EXTERN extern "C" TCL_STORAGE_CLASS
#else
#   define EXTERN extern TCL_STORAGE_CLASS
#endif

/*
 *----------------------------------------------------------------------------
 * The following code is copied from winnt.h. If we don't replicate it here,
 * then <windows.h> can't be included after tcl.h, since tcl.h also defines
 * VOID. This block is skipped under Cygwin and Mingw.
 */

#if defined(__WIN32__) && !defined(HAVE_WINNT_IGNORE_VOID)
#ifndef VOID
#define VOID void
typedef char CHAR;
typedef short SHORT;
typedef long LONG;
#endif
#endif /* __WIN32__ && !HAVE_WINNT_IGNORE_VOID */

/*
 * Macro to use instead of "void" for arguments that must have type "void *"
 * in ANSI C; maps them to type "char *" in non-ANSI systems.
 */

#ifndef NO_VOID
#   define VOID void
#else
#   define VOID char
#endif

/*
 * Miscellaneous declarations.
 */

#ifndef _CLIENTDATA
#   ifndef NO_VOID
	typedef void *ClientData;
#   else
	typedef int *ClientData;
#   endif
#   define _CLIENTDATA
#endif

/*
 * Darwin specific configure overrides (to support fat compiles, where
 * configure runs only once for multiple architectures):
 */

#ifdef __APPLE__
#   ifdef __LP64__
#	undef TCL_WIDE_INT_TYPE
#	define TCL_WIDE_INT_IS_LONG 1
#	define TCL_CFG_DO64BIT 1
#    else /* !__LP64__ */
#	define TCL_WIDE_INT_TYPE long long
#	undef TCL_WIDE_INT_IS_LONG
#	undef TCL_CFG_DO64BIT
#    endif /* __LP64__ */
#    undef HAVE_STRUCT_STAT64
#endif /* __APPLE__ */

/*
 * Define Tcl_WideInt to be a type that is (at least) 64-bits wide, and define
 * Tcl_WideUInt to be the unsigned variant of that type (assuming that where
 * we have one, we can have the other.)
 *
 * Also defines the following macros:
 * TCL_WIDE_INT_IS_LONG - if wide ints are really longs (i.e. we're on a real
 *	64-bit system.)
 * Tcl_WideAsLong - forgetful converter from wideInt to long.
 * Tcl_LongAsWide - sign-extending converter from long to wideInt.
 * Tcl_WideAsDouble - converter from wideInt to double.
 * Tcl_DoubleAsWide - converter from double to wideInt.
 *
 * The following invariant should hold for any long value 'longVal':
 *	longVal == Tcl_WideAsLong(Tcl_LongAsWide(longVal))
 *
 * Note on converting between Tcl_WideInt and strings. This implementation (in
 * tclObj.c) depends on the function
 * sprintf(...,"%" TCL_LL_MODIFIER "d",...).
 */

#if !defined(TCL_WIDE_INT_TYPE)&&!defined(TCL_WIDE_INT_IS_LONG)
#   if defined(__WIN32__)
#      define TCL_WIDE_INT_TYPE __int64
#      ifdef __BORLANDC__
typedef struct stati64 Tcl_StatBuf;
#         define TCL_LL_MODIFIER	"L"
#      else /* __BORLANDC__ */
#         if defined(_WIN64)
typedef struct __stat64 Tcl_StatBuf;
#         elif (defined(_MSC_VER) && (_MSC_VER < 1400)) || defined(_USE_32BIT_TIME_T)
typedef struct _stati64	Tcl_StatBuf;
#         else
typedef struct _stat32i64 Tcl_StatBuf;
#         endif /* _MSC_VER < 1400 */
#         define TCL_LL_MODIFIER	"I64"
#      endif /* __BORLANDC__ */
#   elif defined(__GNUC__)
#      define TCL_WIDE_INT_TYPE long long
#      define TCL_LL_MODIFIER	"ll"
#      if defined(__WIN32__)
typedef struct _stat32i64 Tcl_StatBuf;
#      else
typedef struct stat	Tcl_StatBuf;
#      endif
#   else /* ! __WIN32__ && ! __GNUC__ */
/*
 * Don't know what platform it is and configure hasn't discovered what is
 * going on for us. Try to guess...
 */
#      ifdef NO_LIMITS_H
#	  error please define either TCL_WIDE_INT_TYPE or TCL_WIDE_INT_IS_LONG
#      else /* !NO_LIMITS_H */
#	  include <limits.h>
#	  if (INT_MAX < LONG_MAX)
#	     define TCL_WIDE_INT_IS_LONG	1
#	  else
#	     define TCL_WIDE_INT_TYPE long long
#         endif
#      endif /* NO_LIMITS_H */
#   endif /* __WIN32__ */
#endif /* !TCL_WIDE_INT_TYPE & !TCL_WIDE_INT_IS_LONG */
#ifdef TCL_WIDE_INT_IS_LONG
#   undef TCL_WIDE_INT_TYPE
#   define TCL_WIDE_INT_TYPE	long
#endif /* TCL_WIDE_INT_IS_LONG */

typedef TCL_WIDE_INT_TYPE		Tcl_WideInt;
typedef unsigned TCL_WIDE_INT_TYPE	Tcl_WideUInt;

#ifdef TCL_WIDE_INT_IS_LONG
typedef struct stat	Tcl_StatBuf;
#   define Tcl_WideAsLong(val)		((long)(val))
#   define Tcl_LongAsWide(val)		((long)(val))
#   define Tcl_WideAsDouble(val)	((double)((long)(val)))
#   define Tcl_DoubleAsWide(val)	((long)((double)(val)))
#   ifndef TCL_LL_MODIFIER
#      define TCL_LL_MODIFIER		"l"
#   endif /* !TCL_LL_MODIFIER */
#else /* TCL_WIDE_INT_IS_LONG */
/*
 * The next short section of defines are only done when not running on Windows
 * or some other strange platform.
 */
#   ifndef TCL_LL_MODIFIER
#      ifdef __CYGWIN__
typedef struct _stat32i64 {
    dev_t st_dev;
    ino_t st_ino;
    unsigned short st_mode;
    short st_nlink;
    short st_uid;
    short st_gid;
    dev_t st_rdev;
    long long st_size;
    struct {long tv_sec;} st_atim;
    struct {long tv_sec;} st_mtim;
    struct {long tv_sec;} st_ctim;
} Tcl_StatBuf;
#      elif defined(HAVE_STRUCT_STAT64)
typedef struct stat64	Tcl_StatBuf;
#      else
typedef struct stat	Tcl_StatBuf;
#      endif /* HAVE_STRUCT_STAT64 */
#      define TCL_LL_MODIFIER		"ll"
#   endif /* !TCL_LL_MODIFIER */
#   define Tcl_WideAsLong(val)		((long)((Tcl_WideInt)(val)))
#   define Tcl_LongAsWide(val)		((Tcl_WideInt)((long)(val)))
#   define Tcl_WideAsDouble(val)	((double)((Tcl_WideInt)(val)))
#   define Tcl_DoubleAsWide(val)	((Tcl_WideInt)((double)(val)))
#endif /* TCL_WIDE_INT_IS_LONG */

/*
 *----------------------------------------------------------------------------
 * Data structures defined opaquely in this module. The definitions below just
 * provide dummy types. A few fields are made visible in Tcl_Interp
 * structures, namely those used for returning a string result from commands.
 * Direct access to the result field is discouraged in Tcl 8.0. The
 * interpreter result is either an object or a string, and the two values are
 * kept consistent unless some C code sets interp->result directly.
 * Programmers should use either the function Tcl_GetObjResult() or
 * Tcl_GetStringResult() to read the interpreter's result. See the SetResult
 * man page for details.
 *
 * Note: any change to the Tcl_Interp definition below must be mirrored in the
 * "real" definition in tclInt.h.
 *
 * Note: Tcl_ObjCmdProc functions do not directly set result and freeProc.
 * Instead, they set a Tcl_Obj member in the "real" structure that can be
 * accessed with Tcl_GetObjResult() and Tcl_SetObjResult().
 */

typedef struct Tcl_Interp {
    /* TIP #330: Strongly discourage extensions from using the string
     * result. */
#ifdef USE_INTERP_RESULT
    char *result;		/* If the last command returned a string
				 * result, this points to it. */
    void (*freeProc) (char *blockPtr);
				/* Zero means the string result is statically
				 * allocated. TCL_DYNAMIC means it was
				 * allocated with ckalloc and should be freed
				 * with ckfree. Other values give the address
				 * of function to invoke to free the result.
				 * Tcl_Eval must free it before executing next
				 * command. */
#else
    char *unused3;
    void (*unused4) (char *);
#endif
#ifdef USE_INTERP_ERRORLINE
    int errorLine;		/* When TCL_ERROR is returned, this gives the
				 * line number within the command where the
				 * error occurred (1 if first line). */
#else
    int unused5;
#endif
} Tcl_Interp;

typedef struct Tcl_AsyncHandler_ *Tcl_AsyncHandler;
typedef struct Tcl_Channel_ *Tcl_Channel;
typedef struct Tcl_ChannelTypeVersion_ *Tcl_ChannelTypeVersion;
typedef struct Tcl_Command_ *Tcl_Command;
typedef struct Tcl_Condition_ *Tcl_Condition;
typedef struct Tcl_Dict_ *Tcl_Dict;
typedef struct Tcl_EncodingState_ *Tcl_EncodingState;
typedef struct Tcl_Encoding_ *Tcl_Encoding;
typedef struct Tcl_Event Tcl_Event;
typedef struct Tcl_InterpState_ *Tcl_InterpState;
typedef struct Tcl_LoadHandle_ *Tcl_LoadHandle;
typedef struct Tcl_Mutex_ *Tcl_Mutex;
typedef struct Tcl_Pid_ *Tcl_Pid;
typedef struct Tcl_RegExp_ *Tcl_RegExp;
typedef struct Tcl_ThreadDataKey_ *Tcl_ThreadDataKey;
typedef struct Tcl_ThreadId_ *Tcl_ThreadId;
typedef struct Tcl_TimerToken_ *Tcl_TimerToken;
typedef struct Tcl_Trace_ *Tcl_Trace;
typedef struct Tcl_Var_ *Tcl_Var;
typedef struct Tcl_ZLibStream_ *Tcl_ZlibStream;

/*
 *----------------------------------------------------------------------------
 * Definition of the interface to functions implementing threads. A function
 * following this definition is given to each call of 'Tcl_CreateThread' and
 * will be called as the main fuction of the new thread created by that call.
 */

#if defined __WIN32__
typedef unsigned (__stdcall Tcl_ThreadCreateProc) (ClientData clientData);
#else
typedef void (Tcl_ThreadCreateProc) (ClientData clientData);
#endif

/*
 * Threading function return types used for abstracting away platform
 * differences when writing a Tcl_ThreadCreateProc. See the NewThread function
 * in generic/tclThreadTest.c for it's usage.
 */

#if defined __WIN32__
#   define Tcl_ThreadCreateType		unsigned __stdcall
#   define TCL_THREAD_CREATE_RETURN	return 0
#else
#   define Tcl_ThreadCreateType		void
#   define TCL_THREAD_CREATE_RETURN
#endif

/*
 * Definition of values for default stacksize and the possible flags to be
 * given to Tcl_CreateThread.
 */

#define TCL_THREAD_STACK_DEFAULT (0)    /* Use default size for stack. */
#define TCL_THREAD_NOFLAGS	 (0000) /* Standard flags, default
					 * behaviour. */
#define TCL_THREAD_JOINABLE	 (0001) /* Mark the thread as joinable. */

/*
 * Flag values passed to Tcl_StringCaseMatch.
 */

#define TCL_MATCH_NOCASE	(1<<0)

/*
 * Flag values passed to Tcl_GetRegExpFromObj.
 */

#define	TCL_REG_BASIC		000000	/* BREs (convenience). */
#define	TCL_REG_EXTENDED	000001	/* EREs. */
#define	TCL_REG_ADVF		000002	/* Advanced features in EREs. */
#define	TCL_REG_ADVANCED	000003	/* AREs (which are also EREs). */
#define	TCL_REG_QUOTE		000004	/* No special characters, none. */
#define	TCL_REG_NOCASE		000010	/* Ignore case. */
#define	TCL_REG_NOSUB		000020	/* Don't care about subexpressions. */
#define	TCL_REG_EXPANDED	000040	/* Expanded format, white space &
					 * comments. */
#define	TCL_REG_NLSTOP		000100  /* \n doesn't match . or [^ ] */
#define	TCL_REG_NLANCH		000200  /* ^ matches after \n, $ before. */
#define	TCL_REG_NEWLINE		000300  /* Newlines are line terminators. */
#define	TCL_REG_CANMATCH	001000  /* Report details on partial/limited
					 * matches. */

/*
 * Flags values passed to Tcl_RegExpExecObj.
 */

#define	TCL_REG_NOTBOL	0001	/* Beginning of string does not match ^.  */
#define	TCL_REG_NOTEOL	0002	/* End of string does not match $. */

/*
 * Structures filled in by Tcl_RegExpInfo. Note that all offset values are
 * relative to the start of the match string, not the beginning of the entire
 * string.
 */

typedef struct Tcl_RegExpIndices {
    long start;			/* Character offset of first character in
				 * match. */
    long end;			/* Character offset of first character after
				 * the match. */
} Tcl_RegExpIndices;

typedef struct Tcl_RegExpInfo {
    int nsubs;			/* Number of subexpressions in the compiled
				 * expression. */
    Tcl_RegExpIndices *matches;	/* Array of nsubs match offset pairs. */
    long extendStart;		/* The offset at which a subsequent match
				 * might begin. */
    long reserved;		/* Reserved for later use. */
} Tcl_RegExpInfo;

/*
 * Picky compilers complain if this typdef doesn't appear before the struct's
 * reference in tclDecls.h.
 */

typedef Tcl_StatBuf *Tcl_Stat_;
typedef struct stat *Tcl_OldStat_;

/*
 *----------------------------------------------------------------------------
 * When a TCL command returns, the interpreter contains a result from the
 * command. Programmers are strongly encouraged to use one of the functions
 * Tcl_GetObjResult() or Tcl_GetStringResult() to read the interpreter's
 * result. See the SetResult man page for details. Besides this result, the
 * command function returns an integer code, which is one of the following:
 *
 * TCL_OK		Command completed normally; the interpreter's result
 *			contains the command's result.
 * TCL_ERROR		The command couldn't be completed successfully; the
 *			interpreter's result describes what went wrong.
 * TCL_RETURN		The command requests that the current function return;
 *			the interpreter's result contains the function's
 *			return value.
 * TCL_BREAK		The command requests that the innermost loop be
 *			exited; the interpreter's result is meaningless.
 * TCL_CONTINUE		Go on to the next iteration of the current loop; the
 *			interpreter's result is meaningless.
 */

#define TCL_OK			0
#define TCL_ERROR		1
#define TCL_RETURN		2
#define TCL_BREAK		3
#define TCL_CONTINUE		4

#define TCL_RESULT_SIZE		200

/*
 *----------------------------------------------------------------------------
 * Flags to control what substitutions are performed by Tcl_SubstObj():
 */

#define TCL_SUBST_COMMANDS	001
#define TCL_SUBST_VARIABLES	002
#define TCL_SUBST_BACKSLASHES	004
#define TCL_SUBST_ALL		007

/*
 * Argument descriptors for math function callbacks in expressions:
 */

typedef enum {
    TCL_INT, TCL_DOUBLE, TCL_EITHER, TCL_WIDE_INT
} Tcl_ValueType;

typedef struct Tcl_Value {
    Tcl_ValueType type;		/* Indicates intValue or doubleValue is valid,
				 * or both. */
    long intValue;		/* Integer value. */
    double doubleValue;		/* Double-precision floating value. */
    Tcl_WideInt wideValue;	/* Wide (min. 64-bit) integer value. */
} Tcl_Value;

/*
 * Forward declaration of Tcl_Obj to prevent an error when the forward
 * reference to Tcl_Obj is encountered in the function types declared below.
 */

struct Tcl_Obj;

/*
 *----------------------------------------------------------------------------
 * Function types defined by Tcl:
 */

typedef int (Tcl_AppInitProc) (Tcl_Interp *interp);
typedef int (Tcl_AsyncProc) (ClientData clientData, Tcl_Interp *interp,
	int code);
typedef void (Tcl_ChannelProc) (ClientData clientData, int mask);
typedef void (Tcl_CloseProc) (ClientData data);
typedef void (Tcl_CmdDeleteProc) (ClientData clientData);
typedef int (Tcl_CmdProc) (ClientData clientData, Tcl_Interp *interp,
	int argc, CONST84 char *argv[]);
typedef void (Tcl_CmdTraceProc) (ClientData clientData, Tcl_Interp *interp,
	int level, char *command, Tcl_CmdProc *proc,
	ClientData cmdClientData, int argc, CONST84 char *argv[]);
typedef int (Tcl_CmdObjTraceProc) (ClientData clientData, Tcl_Interp *interp,
	int level, const char *command, Tcl_Command commandInfo, int objc,
	struct Tcl_Obj *const *objv);
typedef void (Tcl_CmdObjTraceDeleteProc) (ClientData clientData);
typedef void (Tcl_DupInternalRepProc) (struct Tcl_Obj *srcPtr,
	struct Tcl_Obj *dupPtr);
typedef int (Tcl_EncodingConvertProc) (ClientData clientData, const char *src,
	int srcLen, int flags, Tcl_EncodingState *statePtr, char *dst,
	int dstLen, int *srcReadPtr, int *dstWrotePtr, int *dstCharsPtr);
typedef void (Tcl_EncodingFreeProc) (ClientData clientData);
typedef int (Tcl_EventProc) (Tcl_Event *evPtr, int flags);
typedef void (Tcl_EventCheckProc) (ClientData clientData, int flags);
typedef int (Tcl_EventDeleteProc) (Tcl_Event *evPtr, ClientData clientData);
typedef void (Tcl_EventSetupProc) (ClientData clientData, int flags);
typedef void (Tcl_ExitProc) (ClientData clientData);
typedef void (Tcl_FileProc) (ClientData clientData, int mask);
typedef void (Tcl_FileFreeProc) (ClientData clientData);
typedef void (Tcl_FreeInternalRepProc) (struct Tcl_Obj *objPtr);
typedef void (Tcl_FreeProc) (char *blockPtr);
typedef void (Tcl_IdleProc) (ClientData clientData);
typedef void (Tcl_InterpDeleteProc) (ClientData clientData,
	Tcl_Interp *interp);
typedef int (Tcl_MathProc) (ClientData clientData, Tcl_Interp *interp,
	Tcl_Value *args, Tcl_Value *resultPtr);
typedef void (Tcl_NamespaceDeleteProc) (ClientData clientData);
typedef int (Tcl_ObjCmdProc) (ClientData clientData, Tcl_Interp *interp,
	int objc, struct Tcl_Obj *const *objv);
typedef int (Tcl_PackageInitProc) (Tcl_Interp *interp);
typedef int (Tcl_PackageUnloadProc) (Tcl_Interp *interp, int flags);
typedef void (Tcl_PanicProc) (const char *format, ...);
typedef void (Tcl_TcpAcceptProc) (ClientData callbackData, Tcl_Channel chan,
	char *address, int port);
typedef void (Tcl_TimerProc) (ClientData clientData);
typedef int (Tcl_SetFromAnyProc) (Tcl_Interp *interp, struct Tcl_Obj *objPtr);
typedef void (Tcl_UpdateStringProc) (struct Tcl_Obj *objPtr);
typedef char * (Tcl_VarTraceProc) (ClientData clientData, Tcl_Interp *interp,
	CONST84 char *part1, CONST84 char *part2, int flags);
typedef void (Tcl_CommandTraceProc) (ClientData clientData, Tcl_Interp *interp,
	const char *oldName, const char *newName, int flags);
typedef void (Tcl_CreateFileHandlerProc) (int fd, int mask, Tcl_FileProc *proc,
	ClientData clientData);
typedef void (Tcl_DeleteFileHandlerProc) (int fd);
typedef void (Tcl_AlertNotifierProc) (ClientData clientData);
typedef void (Tcl_ServiceModeHookProc) (int mode);
typedef ClientData (Tcl_InitNotifierProc) (void);
typedef void (Tcl_FinalizeNotifierProc) (ClientData clientData);
typedef void (Tcl_MainLoopProc) (void);

/*
 *----------------------------------------------------------------------------
 * The following structure represents a type of object, which is a particular
 * internal representation for an object plus a set of functions that provide
 * standard operations on objects of that type.
 */

typedef struct Tcl_ObjType {
    const char *name;		/* Name of the type, e.g. "int". */
    Tcl_FreeInternalRepProc *freeIntRepProc;
				/* Called to free any storage for the type's
				 * internal rep. NULL if the internal rep does
				 * not need freeing. */
    Tcl_DupInternalRepProc *dupIntRepProc;
				/* Called to create a new object as a copy of
				 * an existing object. */
    Tcl_UpdateStringProc *updateStringProc;
				/* Called to update the string rep from the
				 * type's internal representation. */
    Tcl_SetFromAnyProc *setFromAnyProc;
				/* Called to convert the object's internal rep
				 * to this type. Frees the internal rep of the
				 * old type. Returns TCL_ERROR on failure. */
} Tcl_ObjType;

/*
 * One of the following structures exists for each object in the Tcl system.
 * An object stores a value as either a string, some internal representation,
 * or both.
 */

typedef struct Tcl_Obj {
    int refCount;		/* When 0 the object will be freed. */
    char *bytes;		/* This points to the first byte of the
				 * object's string representation. The array
				 * must be followed by a null byte (i.e., at
				 * offset length) but may also contain
				 * embedded null characters. The array's
				 * storage is allocated by ckalloc. NULL means
				 * the string rep is invalid and must be
				 * regenerated from the internal rep.  Clients
				 * should use Tcl_GetStringFromObj or
				 * Tcl_GetString to get a pointer to the byte
				 * array as a readonly value. */
    int length;			/* The number of bytes at *bytes, not
				 * including the terminating null. */
    const Tcl_ObjType *typePtr;	/* Denotes the object's type. Always
				 * corresponds to the type of the object's
				 * internal rep. NULL indicates the object has
				 * no internal rep (has no type). */
    union {			/* The internal representation: */
	long longValue;		/*   - an long integer value. */
	double doubleValue;	/*   - a double-precision floating value. */
	void *otherValuePtr;	/*   - another, type-specific value. */
	Tcl_WideInt wideValue;	/*   - a long long value. */
	struct {		/*   - internal rep as two pointers. */
	    void *ptr1;
	    void *ptr2;
	} twoPtrValue;
	struct {		/*   - internal rep as a pointer and a long,
				 *     the main use of which is a bignum's
				 *     tightly packed fields, where the alloc,
				 *     used and signum flags are packed into a
				 *     single word with everything else hung
				 *     off the pointer. */
	    void *ptr;
	    unsigned long value;
	} ptrAndLongRep;
    } internalRep;
} Tcl_Obj;

/*
 * Macros to increment and decrement a Tcl_Obj's reference count, and to test
 * whether an object is shared (i.e. has reference count > 1). Note: clients
 * should use Tcl_DecrRefCount() when they are finished using an object, and
 * should never call TclFreeObj() directly. TclFreeObj() is only defined and
 * made public in tcl.h to support Tcl_DecrRefCount's macro definition. Note
 * also that Tcl_DecrRefCount() refers to the parameter "obj" twice. This
 * means that you should avoid calling it with an expression that is expensive
 * to compute or has side effects.
 */

void		Tcl_IncrRefCount(Tcl_Obj *objPtr);
void		Tcl_DecrRefCount(Tcl_Obj *objPtr);
int		Tcl_IsShared(Tcl_Obj *objPtr);

/*
 *----------------------------------------------------------------------------
 * The following structure contains the state needed by Tcl_SaveResult. No-one
 * outside of Tcl should access any of these fields. This structure is
 * typically allocated on the stack.
 */

typedef struct Tcl_SavedResult {
    char *result;
    Tcl_FreeProc *freeProc;
    Tcl_Obj *objResultPtr;
    char *appendResult;
    int appendAvl;
    int appendUsed;
    char resultSpace[TCL_RESULT_SIZE+1];
} Tcl_SavedResult;

/*
 *----------------------------------------------------------------------------
 * The following definitions support Tcl's namespace facility. Note: the first
 * five fields must match exactly the fields in a Namespace structure (see
 * tclInt.h).
 */

typedef struct Tcl_Namespace {
    char *name;			/* The namespace's name within its parent
				 * namespace. This contains no ::'s. The name
				 * of the global namespace is "" although "::"
				 * is an synonym. */
    char *fullName;		/* The namespace's fully qualified name. This
				 * starts with ::. */
    ClientData clientData;	/* Arbitrary value associated with this
				 * namespace. */
    Tcl_NamespaceDeleteProc *deleteProc;
				/* Function invoked when deleting the
				 * namespace to, e.g., free clientData. */
    struct Tcl_Namespace *parentPtr;
				/* Points to the namespace that contains this
				 * one. NULL if this is the global
				 * namespace. */
} Tcl_Namespace;

/*
 *----------------------------------------------------------------------------
 * The following structure represents a call frame, or activation record. A
 * call frame defines a naming context for a procedure call: its local scope
 * (for local variables) and its namespace scope (used for non-local
 * variables; often the global :: namespace). A call frame can also define the
 * naming context for a namespace eval or namespace inscope command: the
 * namespace in which the command's code should execute. The Tcl_CallFrame
 * structures exist only while procedures or namespace eval/inscope's are
 * being executed, and provide a Tcl call stack.
 *
 * A call frame is initialized and pushed using Tcl_PushCallFrame and popped
 * using Tcl_PopCallFrame. Storage for a Tcl_CallFrame must be provided by the
 * Tcl_PushCallFrame caller, and callers typically allocate them on the C call
 * stack for efficiency. For this reason, Tcl_CallFrame is defined as a
 * structure and not as an opaque token. However, most Tcl_CallFrame fields
 * are hidden since applications should not access them directly; others are
 * declared as "dummyX".
 *
 * WARNING!! The structure definition must be kept consistent with the
 * CallFrame structure in tclInt.h. If you change one, change the other.
 */

typedef struct Tcl_CallFrame {
    Tcl_Namespace *nsPtr;
    int dummy1;
    int dummy2;
    void *dummy3;
    void *dummy4;
    void *dummy5;
    int dummy6;
    void *dummy7;
    void *dummy8;
    int dummy9;
    void *dummy10;
    void *dummy11;
    void *dummy12;
    void *dummy13;
} Tcl_CallFrame;

/*
 *----------------------------------------------------------------------------
 * Information about commands that is returned by Tcl_GetCommandInfo and
 * passed to Tcl_SetCommandInfo. objProc is an objc/objv object-based command
 * function while proc is a traditional Tcl argc/argv string-based function.
 * Tcl_CreateObjCommand and Tcl_CreateCommand ensure that both objProc and
 * proc are non-NULL and can be called to execute the command. However, it may
 * be faster to call one instead of the other. The member isNativeObjectProc
 * is set to 1 if an object-based function was registered by
 * Tcl_CreateObjCommand, and to 0 if a string-based function was registered by
 * Tcl_CreateCommand. The other function is typically set to a compatibility
 * wrapper that does string-to-object or object-to-string argument conversions
 * then calls the other function.
 */

typedef struct Tcl_CmdInfo {
    int isNativeObjectProc;	/* 1 if objProc was registered by a call to
				 * Tcl_CreateObjCommand; 0 otherwise.
				 * Tcl_SetCmdInfo does not modify this
				 * field. */
    Tcl_ObjCmdProc *objProc;	/* Command's object-based function. */
    ClientData objClientData;	/* ClientData for object proc. */
    Tcl_CmdProc *proc;		/* Command's string-based function. */
    ClientData clientData;	/* ClientData for string proc. */
    Tcl_CmdDeleteProc *deleteProc;
				/* Function to call when command is
				 * deleted. */
    ClientData deleteData;	/* Value to pass to deleteProc (usually the
				 * same as clientData). */
    Tcl_Namespace *namespacePtr;/* Points to the namespace that contains this
				 * command. Note that Tcl_SetCmdInfo will not
				 * change a command's namespace; use
				 * TclRenameCommand or Tcl_Eval (of 'rename')
				 * to do that. */
} Tcl_CmdInfo;

/*
 *----------------------------------------------------------------------------
 * The structure defined below is used to hold dynamic strings. The only
 * fields that clients should use are string and length, accessible via the
 * macros Tcl_DStringValue and Tcl_DStringLength.
 */

#define TCL_DSTRING_STATIC_SIZE 200
typedef struct Tcl_DString {
    char *string;		/* Points to beginning of string: either
				 * staticSpace below or a malloced array. */
    int length;			/* Number of non-NULL characters in the
				 * string. */
    int spaceAvl;		/* Total number of bytes available for the
				 * string and its terminating NULL char. */
    char staticSpace[TCL_DSTRING_STATIC_SIZE];
				/* Space to use in common case where string is
				 * small. */
} Tcl_DString;

#define Tcl_DStringLength(dsPtr) ((dsPtr)->length)
#define Tcl_DStringValue(dsPtr) ((dsPtr)->string)
#define Tcl_DStringTrunc Tcl_DStringSetLength

/*
 * Definitions for the maximum number of digits of precision that may be
 * specified in the "tcl_precision" variable, and the number of bytes of
 * buffer space required by Tcl_PrintDouble.
 */

#define TCL_MAX_PREC		17
#define TCL_DOUBLE_SPACE	(TCL_MAX_PREC+10)

/*
 * Definition for a number of bytes of buffer space sufficient to hold the
 * string representation of an integer in base 10 (assuming the existence of
 * 64-bit integers).
 */

#define TCL_INTEGER_SPACE	24

/*
 * Flag values passed to Tcl_ConvertElement.
 * TCL_DONT_USE_BRACES forces it not to enclose the element in braces, but to
 *	use backslash quoting instead.
 * TCL_DONT_QUOTE_HASH disables the default quoting of the '#' character. It
 *	is safe to leave the hash unquoted when the element is not the first
 *	element of a list, and this flag can be used by the caller to indicate
 *	that condition.
 */

#define TCL_DONT_USE_BRACES	1
#define TCL_DONT_QUOTE_HASH	8

/*
 * Flag that may be passed to Tcl_GetIndexFromObj to force it to disallow
 * abbreviated strings.
 */

#define TCL_EXACT	1

/*
 *----------------------------------------------------------------------------
 * Flag values passed to Tcl_RecordAndEval, Tcl_EvalObj, Tcl_EvalObjv.
 * WARNING: these bit choices must not conflict with the bit choices for
 * evalFlag bits in tclInt.h!
 *
 * Meanings:
 *	TCL_NO_EVAL:		Just record this command
 *	TCL_EVAL_GLOBAL:	Execute script in global namespace
 *	TCL_EVAL_DIRECT:	Do not compile this script
 *	TCL_EVAL_INVOKE:	Magical Tcl_EvalObjv mode for aliases/ensembles
 *				o Run in iPtr->lookupNsPtr or global namespace
 *				o Cut out of error traces
 *				o Don't reset the flags controlling ensemble
 *				  error message rewriting.
 *	TCL_CANCEL_UNWIND:	Magical Tcl_CancelEval mode that causes the
 *				stack for the script in progress to be
 *				completely unwound.
 *	TCL_EVAL_NOERR:	Do no exception reporting at all, just return
 *				as the caller will report.
 */

#define TCL_NO_EVAL		0x010000
#define TCL_EVAL_GLOBAL		0x020000
#define TCL_EVAL_DIRECT		0x040000
#define TCL_EVAL_INVOKE		0x080000
#define TCL_CANCEL_UNWIND	0x100000
#define TCL_EVAL_NOERR          0x200000

/*
 * Special freeProc values that may be passed to Tcl_SetResult (see the man
 * page for details):
 */

#define TCL_VOLATILE		((Tcl_FreeProc *) 1)
#define TCL_STATIC		((Tcl_FreeProc *) 0)
#define TCL_DYNAMIC		((Tcl_FreeProc *) 3)

/*
 * Flag values passed to variable-related functions.
 * WARNING: these bit choices must not conflict with the bit choice for
 * TCL_CANCEL_UNWIND, above.
 */

#define TCL_GLOBAL_ONLY		 1
#define TCL_NAMESPACE_ONLY	 2
#define TCL_APPEND_VALUE	 4
#define TCL_LIST_ELEMENT	 8
#define TCL_TRACE_READS		 0x10
#define TCL_TRACE_WRITES	 0x20
#define TCL_TRACE_UNSETS	 0x40
#define TCL_TRACE_DESTROYED	 0x80
#define TCL_INTERP_DESTROYED	 0x100
#define TCL_LEAVE_ERR_MSG	 0x200
#define TCL_TRACE_ARRAY		 0x800
#ifndef TCL_REMOVE_OBSOLETE_TRACES
/* Required to support old variable/vdelete/vinfo traces. */
#define TCL_TRACE_OLD_STYLE	 0x1000
#endif
/* Indicate the semantics of the result of a trace. */
#define TCL_TRACE_RESULT_DYNAMIC 0x8000
#define TCL_TRACE_RESULT_OBJECT  0x10000

/*
 * Flag values for ensemble commands.
 */

#define TCL_ENSEMBLE_PREFIX 0x02/* Flag value to say whether to allow
				 * unambiguous prefixes of commands or to
				 * require exact matches for command names. */

/*
 * Flag values passed to command-related functions.
 */

#define TCL_TRACE_RENAME	0x2000
#define TCL_TRACE_DELETE	0x4000

#define TCL_ALLOW_INLINE_COMPILATION 0x20000

/*
 * The TCL_PARSE_PART1 flag is deprecated and has no effect. The part1 is now
 * always parsed whenever the part2 is NULL. (This is to avoid a common error
 * when converting code to use the new object based APIs and forgetting to
 * give the flag)
 */

#ifndef TCL_NO_DEPRECATED
#   define TCL_PARSE_PART1	0x400
#endif

/*
 * Types for linked variables:
 */

#define TCL_LINK_INT		1
#define TCL_LINK_DOUBLE		2
#define TCL_LINK_BOOLEAN	3
#define TCL_LINK_STRING		4
#define TCL_LINK_WIDE_INT	5
#define TCL_LINK_CHAR		6
#define TCL_LINK_UCHAR		7
#define TCL_LINK_SHORT		8
#define TCL_LINK_USHORT		9
#define TCL_LINK_UINT		10
#define TCL_LINK_LONG		11
#define TCL_LINK_ULONG		12
#define TCL_LINK_FLOAT		13
#define TCL_LINK_WIDE_UINT	14
#define TCL_LINK_READ_ONLY	0x80

/*
 *----------------------------------------------------------------------------
 * Forward declarations of Tcl_HashTable and related types.
 */

typedef struct Tcl_HashKeyType Tcl_HashKeyType;
typedef struct Tcl_HashTable Tcl_HashTable;
typedef struct Tcl_HashEntry Tcl_HashEntry;

typedef unsigned (Tcl_HashKeyProc) (Tcl_HashTable *tablePtr, void *keyPtr);
typedef int (Tcl_CompareHashKeysProc) (void *keyPtr, Tcl_HashEntry *hPtr);
typedef Tcl_HashEntry * (Tcl_AllocHashEntryProc) (Tcl_HashTable *tablePtr,
	void *keyPtr);
typedef void (Tcl_FreeHashEntryProc) (Tcl_HashEntry *hPtr);

/*
 * This flag controls whether the hash table stores the hash of a key, or
 * recalculates it. There should be no reason for turning this flag off as it
 * is completely binary and source compatible unless you directly access the
 * bucketPtr member of the Tcl_HashTableEntry structure. This member has been
 * removed and the space used to store the hash value.
 */

#ifndef TCL_HASH_KEY_STORE_HASH
#   define TCL_HASH_KEY_STORE_HASH 1
#endif

/*
 * Structure definition for an entry in a hash table. No-one outside Tcl
 * should access any of these fields directly; use the macros defined below.
 */

struct Tcl_HashEntry {
    Tcl_HashEntry *nextPtr;	/* Pointer to next entry in this hash bucket,
				 * or NULL for end of chain. */
    Tcl_HashTable *tablePtr;	/* Pointer to table containing entry. */
#if TCL_HASH_KEY_STORE_HASH
    void *hash;			/* Hash value, stored as pointer to ensure
				 * that the offsets of the fields in this
				 * structure are not changed. */
#else
    Tcl_HashEntry **bucketPtr;	/* Pointer to bucket that points to first
				 * entry in this entry's chain: used for
				 * deleting the entry. */
#endif
    ClientData clientData;	/* Application stores something here with
				 * Tcl_SetHashValue. */
    union {			/* Key has one of these forms: */
	char *oneWordValue;	/* One-word value for key. */
	Tcl_Obj *objPtr;	/* Tcl_Obj * key value. */
	int words[1];		/* Multiple integer words for key. The actual
				 * size will be as large as necessary for this
				 * table's keys. */
	char string[1];		/* String for key. The actual size will be as
				 * large as needed to hold the key. */
    } key;			/* MUST BE LAST FIELD IN RECORD!! */
};

/*
 * Flags used in Tcl_HashKeyType.
 *
 * TCL_HASH_KEY_RANDOMIZE_HASH -
 *				There are some things, pointers for example
 *				which don't hash well because they do not use
 *				the lower bits. If this flag is set then the
 *				hash table will attempt to rectify this by
 *				randomising the bits and then using the upper
 *				N bits as the index into the table.
 * TCL_HASH_KEY_SYSTEM_HASH -	If this flag is set then all memory internally
 *                              allocated for the hash table that is not for an
 *                              entry will use the system heap.
 */

#define TCL_HASH_KEY_RANDOMIZE_HASH 0x1
#define TCL_HASH_KEY_SYSTEM_HASH    0x2

/*
 * Structure definition for the methods associated with a hash table key type.
 */

#define TCL_HASH_KEY_TYPE_VERSION 1
struct Tcl_HashKeyType {
    int version;		/* Version of the table. If this structure is
				 * extended in future then the version can be
				 * used to distinguish between different
				 * structures. */
    int flags;			/* Flags, see above for details. */
    Tcl_HashKeyProc *hashKeyProc;
				/* Calculates a hash value for the key. If
				 * this is NULL then the pointer itself is
				 * used as a hash value. */
    Tcl_CompareHashKeysProc *compareKeysProc;
				/* Compares two keys and returns zero if they
				 * do not match, and non-zero if they do. If
				 * this is NULL then the pointers are
				 * compared. */
    Tcl_AllocHashEntryProc *allocEntryProc;
				/* Called to allocate memory for a new entry,
				 * i.e. if the key is a string then this could
				 * allocate a single block which contains
				 * enough space for both the entry and the
				 * string. Only the key field of the allocated
				 * Tcl_HashEntry structure needs to be filled
				 * in. If something else needs to be done to
				 * the key, i.e. incrementing a reference
				 * count then that should be done by this
				 * function. If this is NULL then Tcl_Alloc is
				 * used to allocate enough space for a
				 * Tcl_HashEntry and the key pointer is
				 * assigned to key.oneWordValue. */
    Tcl_FreeHashEntryProc *freeEntryProc;
				/* Called to free memory associated with an
				 * entry. If something else needs to be done
				 * to the key, i.e. decrementing a reference
				 * count then that should be done by this
				 * function. If this is NULL then Tcl_Free is
				 * used to free the Tcl_HashEntry. */
};

/*
 * Structure definition for a hash table.  Must be in tcl.h so clients can
 * allocate space for these structures, but clients should never access any
 * fields in this structure.
 */

#define TCL_SMALL_HASH_TABLE 4
struct Tcl_HashTable {
    Tcl_HashEntry **buckets;	/* Pointer to bucket array. Each element
				 * points to first entry in bucket's hash
				 * chain, or NULL. */
    Tcl_HashEntry *staticBuckets[TCL_SMALL_HASH_TABLE];
				/* Bucket array used for small tables (to
				 * avoid mallocs and frees). */
    int numBuckets;		/* Total number of buckets allocated at
				 * **bucketPtr. */
    int numEntries;		/* Total number of entries present in
				 * table. */
    int rebuildSize;		/* Enlarge table when numEntries gets to be
				 * this large. */
    int downShift;		/* Shift count used in hashing function.
				 * Designed to use high-order bits of
				 * randomized keys. */
    int mask;			/* Mask value used in hashing function. */
    int keyType;		/* Type of keys used in this table. It's
				 * either TCL_CUSTOM_KEYS, TCL_STRING_KEYS,
				 * TCL_ONE_WORD_KEYS, or an integer giving the
				 * number of ints that is the size of the
				 * key. */
    Tcl_HashEntry *(*findProc) (Tcl_HashTable *tablePtr, const char *key);
    Tcl_HashEntry *(*createProc) (Tcl_HashTable *tablePtr, const char *key,
	    int *newPtr);
    const Tcl_HashKeyType *typePtr;
				/* Type of the keys used in the
				 * Tcl_HashTable. */
};

/*
 * Structure definition for information used to keep track of searches through
 * hash tables:
 */

typedef struct Tcl_HashSearch {
    Tcl_HashTable *tablePtr;	/* Table being searched. */
    int nextIndex;		/* Index of next bucket to be enumerated after
				 * present one. */
    Tcl_HashEntry *nextEntryPtr;/* Next entry to be enumerated in the current
				 * bucket. */
} Tcl_HashSearch;

/*
 * Acceptable key types for hash tables:
 *
 * TCL_STRING_KEYS:		The keys are strings, they are copied into the
 *				entry.
 * TCL_ONE_WORD_KEYS:		The keys are pointers, the pointer is stored
 *				in the entry.
 * TCL_CUSTOM_TYPE_KEYS:	The keys are arbitrary types which are copied
 *				into the entry.
 * TCL_CUSTOM_PTR_KEYS:		The keys are pointers to arbitrary types, the
 *				pointer is stored in the entry.
 *
 * While maintaining binary compatability the above have to be distinct values
 * as they are used to differentiate between old versions of the hash table
 * which don't have a typePtr and new ones which do. Once binary compatability
 * is discarded in favour of making more wide spread changes TCL_STRING_KEYS
 * can be the same as TCL_CUSTOM_TYPE_KEYS, and TCL_ONE_WORD_KEYS can be the
 * same as TCL_CUSTOM_PTR_KEYS because they simply determine how the key is
 * accessed from the entry and not the behaviour.
 */

#define TCL_STRING_KEYS		(0)
#define TCL_ONE_WORD_KEYS	(1)
#define TCL_CUSTOM_TYPE_KEYS	(-2)
#define TCL_CUSTOM_PTR_KEYS	(-1)

/*
 * Structure definition for information used to keep track of searches through
 * dictionaries. These fields should not be accessed by code outside
 * tclDictObj.c
 */

typedef struct {
    void *next;			/* Search position for underlying hash
				 * table. */
    int epoch;			/* Epoch marker for dictionary being searched,
				 * or -1 if search has terminated. */
    Tcl_Dict dictionaryPtr;	/* Reference to dictionary being searched. */
} Tcl_DictSearch;

/*
 *----------------------------------------------------------------------------
 * Flag values to pass to Tcl_DoOneEvent to disable searches for some kinds of
 * events:
 */

#define TCL_DONT_WAIT		(1<<1)
#define TCL_WINDOW_EVENTS	(1<<2)
#define TCL_FILE_EVENTS		(1<<3)
#define TCL_TIMER_EVENTS	(1<<4)
#define TCL_IDLE_EVENTS		(1<<5)	/* WAS 0x10 ???? */
#define TCL_ALL_EVENTS		(~TCL_DONT_WAIT)

/*
 * The following structure defines a generic event for the Tcl event system.
 * These are the things that are queued in calls to Tcl_QueueEvent and
 * serviced later by Tcl_DoOneEvent. There can be many different kinds of
 * events with different fields, corresponding to window events, timer events,
 * etc. The structure for a particular event consists of a Tcl_Event header
 * followed by additional information specific to that event.
 */

struct Tcl_Event {
    Tcl_EventProc *proc;	/* Function to call to service this event. */
    struct Tcl_Event *nextPtr;	/* Next in list of pending events, or NULL. */
};

/*
 * Positions to pass to Tcl_QueueEvent:
 */

typedef enum {
    TCL_QUEUE_TAIL, TCL_QUEUE_HEAD, TCL_QUEUE_MARK
} Tcl_QueuePosition;

/*
 * Values to pass to Tcl_SetServiceMode to specify the behavior of notifier
 * event routines.
 */

#define TCL_SERVICE_NONE 0
#define TCL_SERVICE_ALL 1

/*
 * The following structure keeps is used to hold a time value, either as an
 * absolute time (the number of seconds from the epoch) or as an elapsed time.
 * On Unix systems the epoch is Midnight Jan 1, 1970 GMT.
 */

typedef struct Tcl_Time {
    long sec;			/* Seconds. */
    long usec;			/* Microseconds. */
} Tcl_Time;

typedef void (Tcl_SetTimerProc) (CONST86 Tcl_Time *timePtr);
typedef int (Tcl_WaitForEventProc) (CONST86 Tcl_Time *timePtr);

/*
 * TIP #233 (Virtualized Time)
 */

typedef void (Tcl_GetTimeProc)   (Tcl_Time *timebuf, ClientData clientData);
typedef void (Tcl_ScaleTimeProc) (Tcl_Time *timebuf, ClientData clientData);

/*
 *----------------------------------------------------------------------------
 * Bits to pass to Tcl_CreateFileHandler and Tcl_CreateChannelHandler to
 * indicate what sorts of events are of interest:
 */

#define TCL_READABLE		(1<<1)
#define TCL_WRITABLE		(1<<2)
#define TCL_EXCEPTION		(1<<3)

/*
 * Flag values to pass to Tcl_OpenCommandChannel to indicate the disposition
 * of the stdio handles. TCL_STDIN, TCL_STDOUT, TCL_STDERR, are also used in
 * Tcl_GetStdChannel.
 */

#define TCL_STDIN		(1<<1)
#define TCL_STDOUT		(1<<2)
#define TCL_STDERR		(1<<3)
#define TCL_ENFORCE_MODE	(1<<4)

/*
 * Bits passed to Tcl_DriverClose2Proc to indicate which side of a channel
 * should be closed.
 */

#define TCL_CLOSE_READ		(1<<1)
#define TCL_CLOSE_WRITE		(1<<2)

/*
 * Value to use as the closeProc for a channel that supports the close2Proc
 * interface.
 */

#define TCL_CLOSE2PROC		((Tcl_DriverCloseProc *) 1)

/*
 * Channel version tag. This was introduced in 8.3.2/8.4.
 */

#define TCL_CHANNEL_VERSION_1	((Tcl_ChannelTypeVersion) 0x1)
#define TCL_CHANNEL_VERSION_2	((Tcl_ChannelTypeVersion) 0x2)
#define TCL_CHANNEL_VERSION_3	((Tcl_ChannelTypeVersion) 0x3)
#define TCL_CHANNEL_VERSION_4	((Tcl_ChannelTypeVersion) 0x4)
#define TCL_CHANNEL_VERSION_5	((Tcl_ChannelTypeVersion) 0x5)

/*
 * TIP #218: Channel Actions, Ids for Tcl_DriverThreadActionProc.
 */

#define TCL_CHANNEL_THREAD_INSERT (0)
#define TCL_CHANNEL_THREAD_REMOVE (1)

/*
 * Typedefs for the various operations in a channel type:
 */

typedef int	(Tcl_DriverBlockModeProc) (ClientData instanceData, int mode);
typedef int	(Tcl_DriverCloseProc) (ClientData instanceData,
			Tcl_Interp *interp);
typedef int	(Tcl_DriverClose2Proc) (ClientData instanceData,
			Tcl_Interp *interp, int flags);
typedef int	(Tcl_DriverInputProc) (ClientData instanceData, char *buf,
			int toRead, int *errorCodePtr);
typedef int	(Tcl_DriverOutputProc) (ClientData instanceData,
			CONST84 char *buf, int toWrite, int *errorCodePtr);
typedef int	(Tcl_DriverSeekProc) (ClientData instanceData, long offset,
			int mode, int *errorCodePtr);
typedef int	(Tcl_DriverSetOptionProc) (ClientData instanceData,
			Tcl_Interp *interp, const char *optionName,
			const char *value);
typedef int	(Tcl_DriverGetOptionProc) (ClientData instanceData,
			Tcl_Interp *interp, CONST84 char *optionName,
			Tcl_DString *dsPtr);
typedef void	(Tcl_DriverWatchProc) (ClientData instanceData, int mask);
typedef int	(Tcl_DriverGetHandleProc) (ClientData instanceData,
			int direction, ClientData *handlePtr);
typedef int	(Tcl_DriverFlushProc) (ClientData instanceData);
typedef int	(Tcl_DriverHandlerProc) (ClientData instanceData,
			int interestMask);
typedef Tcl_WideInt (Tcl_DriverWideSeekProc) (ClientData instanceData,
			Tcl_WideInt offset, int mode, int *errorCodePtr);
/*
 * TIP #218, Channel Thread Actions
 */
typedef void	(Tcl_DriverThreadActionProc) (ClientData instanceData,
			int action);
/*
 * TIP #208, File Truncation (etc.)
 */
typedef int	(Tcl_DriverTruncateProc) (ClientData instanceData,
			Tcl_WideInt length);

/*
 * struct Tcl_ChannelType:
 *
 * One such structure exists for each type (kind) of channel. It collects
 * together in one place all the functions that are part of the specific
 * channel type.
 *
 * It is recommend that the Tcl_Channel* functions are used to access elements
 * of this structure, instead of direct accessing.
 */

typedef struct Tcl_ChannelType {
    const char *typeName;	/* The name of the channel type in Tcl
				 * commands. This storage is owned by channel
				 * type. */
    Tcl_ChannelTypeVersion version;
				/* Version of the channel type. */
    Tcl_DriverCloseProc *closeProc;
				/* Function to call to close the channel, or
				 * TCL_CLOSE2PROC if the close2Proc should be
				 * used instead. */
    Tcl_DriverInputProc *inputProc;
				/* Function to call for input on channel. */
    Tcl_DriverOutputProc *outputProc;
				/* Function to call for output on channel. */
    Tcl_DriverSeekProc *seekProc;
				/* Function to call to seek on the channel.
				 * May be NULL. */
    Tcl_DriverSetOptionProc *setOptionProc;
				/* Set an option on a channel. */
    Tcl_DriverGetOptionProc *getOptionProc;
				/* Get an option from a channel. */
    Tcl_DriverWatchProc *watchProc;
				/* Set up the notifier to watch for events on
				 * this channel. */
    Tcl_DriverGetHandleProc *getHandleProc;
				/* Get an OS handle from the channel or NULL
				 * if not supported. */
    Tcl_DriverClose2Proc *close2Proc;
				/* Function to call to close the channel if
				 * the device supports closing the read &
				 * write sides independently. */
    Tcl_DriverBlockModeProc *blockModeProc;
				/* Set blocking mode for the raw channel. May
				 * be NULL. */
    /*
     * Only valid in TCL_CHANNEL_VERSION_2 channels or later.
     */
    Tcl_DriverFlushProc *flushProc;
				/* Function to call to flush a channel. May be
				 * NULL. */
    Tcl_DriverHandlerProc *handlerProc;
				/* Function to call to handle a channel event.
				 * This will be passed up the stacked channel
				 * chain. */
    /*
     * Only valid in TCL_CHANNEL_VERSION_3 channels or later.
     */
    Tcl_DriverWideSeekProc *wideSeekProc;
				/* Function to call to seek on the channel
				 * which can handle 64-bit offsets. May be
				 * NULL, and must be NULL if seekProc is
				 * NULL. */
    /*
     * Only valid in TCL_CHANNEL_VERSION_4 channels or later.
     * TIP #218, Channel Thread Actions.
     */
    Tcl_DriverThreadActionProc *threadActionProc;
				/* Function to call to notify the driver of
				 * thread specific activity for a channel. May
				 * be NULL. */
    /*
     * Only valid in TCL_CHANNEL_VERSION_5 channels or later.
     * TIP #208, File Truncation.
     */
    Tcl_DriverTruncateProc *truncateProc;
				/* Function to call to truncate the underlying
				 * file to a particular length. May be NULL if
				 * the channel does not support truncation. */
} Tcl_ChannelType;

/*
 * The following flags determine whether the blockModeProc above should set
 * the channel into blocking or nonblocking mode. They are passed as arguments
 * to the blockModeProc function in the above structure.
 */

#define TCL_MODE_BLOCKING	0	/* Put channel into blocking mode. */
#define TCL_MODE_NONBLOCKING	1	/* Put channel into nonblocking
					 * mode. */

/*
 *----------------------------------------------------------------------------
 * Enum for different types of file paths.
 */

typedef enum Tcl_PathType {
    TCL_PATH_ABSOLUTE,
    TCL_PATH_RELATIVE,
    TCL_PATH_VOLUME_RELATIVE
} Tcl_PathType;

/*
 * The following structure is used to pass glob type data amongst the various
 * glob routines and Tcl_FSMatchInDirectory.
 */

typedef struct Tcl_GlobTypeData {
    int type;			/* Corresponds to bcdpfls as in 'find -t'. */
    int perm;			/* Corresponds to file permissions. */
    Tcl_Obj *macType;		/* Acceptable Mac type. */
    Tcl_Obj *macCreator;	/* Acceptable Mac creator. */
} Tcl_GlobTypeData;

/*
 * Type and permission definitions for glob command.
 */

#define TCL_GLOB_TYPE_BLOCK		(1<<0)
#define TCL_GLOB_TYPE_CHAR		(1<<1)
#define TCL_GLOB_TYPE_DIR		(1<<2)
#define TCL_GLOB_TYPE_PIPE		(1<<3)
#define TCL_GLOB_TYPE_FILE		(1<<4)
#define TCL_GLOB_TYPE_LINK		(1<<5)
#define TCL_GLOB_TYPE_SOCK		(1<<6)
#define TCL_GLOB_TYPE_MOUNT		(1<<7)

#define TCL_GLOB_PERM_RONLY		(1<<0)
#define TCL_GLOB_PERM_HIDDEN		(1<<1)
#define TCL_GLOB_PERM_R			(1<<2)
#define TCL_GLOB_PERM_W			(1<<3)
#define TCL_GLOB_PERM_X			(1<<4)

/*
 * Flags for the unload callback function.
 */

#define TCL_UNLOAD_DETACH_FROM_INTERPRETER	(1<<0)
#define TCL_UNLOAD_DETACH_FROM_PROCESS		(1<<1)

/*
 * Typedefs for the various filesystem operations:
 */

typedef int (Tcl_FSStatProc) (Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
typedef int (Tcl_FSAccessProc) (Tcl_Obj *pathPtr, int mode);
typedef Tcl_Channel (Tcl_FSOpenFileChannelProc) (Tcl_Interp *interp,
	Tcl_Obj *pathPtr, int mode, int permissions);
typedef int (Tcl_FSMatchInDirectoryProc) (Tcl_Interp *interp, Tcl_Obj *result,
	Tcl_Obj *pathPtr, const char *pattern, Tcl_GlobTypeData *types);
typedef Tcl_Obj * (Tcl_FSGetCwdProc) (Tcl_Interp *interp);
typedef int (Tcl_FSChdirProc) (Tcl_Obj *pathPtr);
typedef int (Tcl_FSLstatProc) (Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
typedef int (Tcl_FSCreateDirectoryProc) (Tcl_Obj *pathPtr);
typedef int (Tcl_FSDeleteFileProc) (Tcl_Obj *pathPtr);
typedef int (Tcl_FSCopyDirectoryProc) (Tcl_Obj *srcPathPtr,
	Tcl_Obj *destPathPtr, Tcl_Obj **errorPtr);
typedef int (Tcl_FSCopyFileProc) (Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr);
typedef int (Tcl_FSRemoveDirectoryProc) (Tcl_Obj *pathPtr, int recursive,
	Tcl_Obj **errorPtr);
typedef int (Tcl_FSRenameFileProc) (Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr);
typedef void (Tcl_FSUnloadFileProc) (Tcl_LoadHandle loadHandle);
typedef Tcl_Obj * (Tcl_FSListVolumesProc) (void);
/* We have to declare the utime structure here. */
struct utimbuf;
typedef int (Tcl_FSUtimeProc) (Tcl_Obj *pathPtr, struct utimbuf *tval);
typedef int (Tcl_FSNormalizePathProc) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
	int nextCheckpoint);
typedef int (Tcl_FSFileAttrsGetProc) (Tcl_Interp *interp, int index,
	Tcl_Obj *pathPtr, Tcl_Obj **objPtrRef);
typedef const char *CONST86 * (Tcl_FSFileAttrStringsProc) (Tcl_Obj *pathPtr,
	Tcl_Obj **objPtrRef);
typedef int (Tcl_FSFileAttrsSetProc) (Tcl_Interp *interp, int index,
	Tcl_Obj *pathPtr, Tcl_Obj *objPtr);
typedef Tcl_Obj * (Tcl_FSLinkProc) (Tcl_Obj *pathPtr, Tcl_Obj *toPtr,
	int linkType);
typedef int (Tcl_FSLoadFileProc) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
	Tcl_LoadHandle *handlePtr, Tcl_FSUnloadFileProc **unloadProcPtr);
typedef int (Tcl_FSPathInFilesystemProc) (Tcl_Obj *pathPtr,
	ClientData *clientDataPtr);
typedef Tcl_Obj * (Tcl_FSFilesystemPathTypeProc) (Tcl_Obj *pathPtr);
typedef Tcl_Obj * (Tcl_FSFilesystemSeparatorProc) (Tcl_Obj *pathPtr);
typedef void (Tcl_FSFreeInternalRepProc) (ClientData clientData);
typedef ClientData (Tcl_FSDupInternalRepProc) (ClientData clientData);
typedef Tcl_Obj * (Tcl_FSInternalToNormalizedProc) (ClientData clientData);
typedef ClientData (Tcl_FSCreateInternalRepProc) (Tcl_Obj *pathPtr);

typedef struct Tcl_FSVersion_ *Tcl_FSVersion;

/*
 *----------------------------------------------------------------------------
 * Data structures related to hooking into the filesystem
 */

/*
 * Filesystem version tag.  This was introduced in 8.4.
 */

#define TCL_FILESYSTEM_VERSION_1	((Tcl_FSVersion) 0x1)

/*
 * struct Tcl_Filesystem:
 *
 * One such structure exists for each type (kind) of filesystem. It collects
 * together in one place all the functions that are part of the specific
 * filesystem. Tcl always accesses the filesystem through one of these
 * structures.
 *
 * Not all entries need be non-NULL; any which are NULL are simply ignored.
 * However, a complete filesystem should provide all of these functions. The
 * explanations in the structure show the importance of each function.
 */

typedef struct Tcl_Filesystem {
    const char *typeName;	/* The name of the filesystem. */
    int structureLength;	/* Length of this structure, so future binary
				 * compatibility can be assured. */
    Tcl_FSVersion version;	/* Version of the filesystem type. */
    Tcl_FSPathInFilesystemProc *pathInFilesystemProc;
				/* Function to check whether a path is in this
				 * filesystem. This is the most important
				 * filesystem function. */
    Tcl_FSDupInternalRepProc *dupInternalRepProc;
				/* Function to duplicate internal fs rep. May
				 * be NULL (but then fs is less efficient). */
    Tcl_FSFreeInternalRepProc *freeInternalRepProc;
				/* Function to free internal fs rep. Must be
				 * implemented if internal representations
				 * need freeing, otherwise it can be NULL. */
    Tcl_FSInternalToNormalizedProc *internalToNormalizedProc;
				/* Function to convert internal representation
				 * to a normalized path. Only required if the
				 * fs creates pure path objects with no
				 * string/path representation. */
    Tcl_FSCreateInternalRepProc *createInternalRepProc;
				/* Function to create a filesystem-specific
				 * internal representation. May be NULL if
				 * paths have no internal representation, or
				 * if the Tcl_FSPathInFilesystemProc for this
				 * filesystem always immediately creates an
				 * internal representation for paths it
				 * accepts. */
    Tcl_FSNormalizePathProc *normalizePathProc;
				/* Function to normalize a path.  Should be
				 * implemented for all filesystems which can
				 * have multiple string representations for
				 * the same path object. */
    Tcl_FSFilesystemPathTypeProc *filesystemPathTypeProc;
				/* Function to determine the type of a path in
				 * this filesystem. May be NULL. */
    Tcl_FSFilesystemSeparatorProc *filesystemSeparatorProc;
				/* Function to return the separator
				 * character(s) for this filesystem. Must be
				 * implemented. */
    Tcl_FSStatProc *statProc;	/* Function to process a 'Tcl_FSStat()' call.
				 * Must be implemented for any reasonable
				 * filesystem. */
    Tcl_FSAccessProc *accessProc;
				/* Function to process a 'Tcl_FSAccess()'
				 * call. Must be implemented for any
				 * reasonable filesystem. */
    Tcl_FSOpenFileChannelProc *openFileChannelProc;
				/* Function to process a
				 * 'Tcl_FSOpenFileChannel()' call. Must be
				 * implemented for any reasonable
				 * filesystem. */
    Tcl_FSMatchInDirectoryProc *matchInDirectoryProc;
				/* Function to process a
				 * 'Tcl_FSMatchInDirectory()'.  If not
				 * implemented, then glob and recursive copy
				 * functionality will be lacking in the
				 * filesystem. */
    Tcl_FSUtimeProc *utimeProc;	/* Function to process a 'Tcl_FSUtime()' call.
				 * Required to allow setting (not reading) of
				 * times with 'file mtime', 'file atime' and
				 * the open-r/open-w/fcopy implementation of
				 * 'file copy'. */
    Tcl_FSLinkProc *linkProc;	/* Function to process a 'Tcl_FSLink()' call.
				 * Should be implemented only if the
				 * filesystem supports links (reading or
				 * creating). */
    Tcl_FSListVolumesProc *listVolumesProc;
				/* Function to list any filesystem volumes
				 * added by this filesystem. Should be
				 * implemented only if the filesystem adds
				 * volumes at the head of the filesystem. */
    Tcl_FSFileAttrStringsProc *fileAttrStringsProc;
				/* Function to list all attributes strings
				 * which are valid for this filesystem. If not
				 * implemented the filesystem will not support
				 * the 'file attributes' command. This allows
				 * arbitrary additional information to be
				 * attached to files in the filesystem. */
    Tcl_FSFileAttrsGetProc *fileAttrsGetProc;
				/* Function to process a
				 * 'Tcl_FSFileAttrsGet()' call, used by 'file
				 * attributes'. */
    Tcl_FSFileAttrsSetProc *fileAttrsSetProc;
				/* Function to process a
				 * 'Tcl_FSFileAttrsSet()' call, used by 'file
				 * attributes'.  */
    Tcl_FSCreateDirectoryProc *createDirectoryProc;
				/* Function to process a
				 * 'Tcl_FSCreateDirectory()' call. Should be
				 * implemented unless the FS is read-only. */
    Tcl_FSRemoveDirectoryProc *removeDirectoryProc;
				/* Function to process a
				 * 'Tcl_FSRemoveDirectory()' call. Should be
				 * implemented unless the FS is read-only. */
    Tcl_FSDeleteFileProc *deleteFileProc;
				/* Function to process a 'Tcl_FSDeleteFile()'
				 * call. Should be implemented unless the FS
				 * is read-only. */
    Tcl_FSCopyFileProc *copyFileProc;
				/* Function to process a 'Tcl_FSCopyFile()'
				 * call. If not implemented Tcl will fall back
				 * on open-r, open-w and fcopy as a copying
				 * mechanism, for copying actions initiated in
				 * Tcl (not C). */
    Tcl_FSRenameFileProc *renameFileProc;
				/* Function to process a 'Tcl_FSRenameFile()'
				 * call. If not implemented, Tcl will fall
				 * back on a copy and delete mechanism, for
				 * rename actions initiated in Tcl (not C). */
    Tcl_FSCopyDirectoryProc *copyDirectoryProc;
				/* Function to process a
				 * 'Tcl_FSCopyDirectory()' call. If not
				 * implemented, Tcl will fall back on a
				 * recursive create-dir, file copy mechanism,
				 * for copying actions initiated in Tcl (not
				 * C). */
    Tcl_FSLstatProc *lstatProc;	/* Function to process a 'Tcl_FSLstat()' call.
				 * If not implemented, Tcl will attempt to use
				 * the 'statProc' defined above instead. */
    Tcl_FSLoadFileProc *loadFileProc;
				/* Function to process a 'Tcl_FSLoadFile()'
				 * call. If not implemented, Tcl will fall
				 * back on a copy to native-temp followed by a
				 * Tcl_FSLoadFile on that temporary copy. */
    Tcl_FSGetCwdProc *getCwdProc;
				/* Function to process a 'Tcl_FSGetCwd()'
				 * call. Most filesystems need not implement
				 * this. It will usually only be called once,
				 * if 'getcwd' is called before 'chdir'. May
				 * be NULL. */
    Tcl_FSChdirProc *chdirProc;	/* Function to process a 'Tcl_FSChdir()' call.
				 * If filesystems do not implement this, it
				 * will be emulated by a series of directory
				 * access checks. Otherwise, virtual
				 * filesystems which do implement it need only
				 * respond with a positive return result if
				 * the dirName is a valid directory in their
				 * filesystem. They need not remember the
				 * result, since that will be automatically
				 * remembered for use by GetCwd. Real
				 * filesystems should carry out the correct
				 * action (i.e. call the correct system
				 * 'chdir' api). If not implemented, then 'cd'
				 * and 'pwd' will fail inside the
				 * filesystem. */
} Tcl_Filesystem;

/*
 * The following definitions are used as values for the 'linkAction' flag to
 * Tcl_FSLink, or the linkProc of any filesystem. Any combination of flags can
 * be given. For link creation, the linkProc should create a link which
 * matches any of the types given.
 *
 * TCL_CREATE_SYMBOLIC_LINK -	Create a symbolic or soft link.
 * TCL_CREATE_HARD_LINK -	Create a hard link.
 */

#define TCL_CREATE_SYMBOLIC_LINK	0x01
#define TCL_CREATE_HARD_LINK		0x02

/*
 *----------------------------------------------------------------------------
 * The following structure represents the Notifier functions that you can
 * override with the Tcl_SetNotifier call.
 */

typedef struct Tcl_NotifierProcs {
    Tcl_SetTimerProc *setTimerProc;
    Tcl_WaitForEventProc *waitForEventProc;
    Tcl_CreateFileHandlerProc *createFileHandlerProc;
    Tcl_DeleteFileHandlerProc *deleteFileHandlerProc;
    Tcl_InitNotifierProc *initNotifierProc;
    Tcl_FinalizeNotifierProc *finalizeNotifierProc;
    Tcl_AlertNotifierProc *alertNotifierProc;
    Tcl_ServiceModeHookProc *serviceModeHookProc;
} Tcl_NotifierProcs;

/*
 *----------------------------------------------------------------------------
 * The following data structures and declarations are for the new Tcl parser.
 *
 * For each word of a command, and for each piece of a word such as a variable
 * reference, one of the following structures is created to describe the
 * token.
 */

typedef struct Tcl_Token {
    int type;			/* Type of token, such as TCL_TOKEN_WORD; see
				 * below for valid types. */
    const char *start;		/* First character in token. */
    int size;			/* Number of bytes in token. */
    int numComponents;		/* If this token is composed of other tokens,
				 * this field tells how many of them there are
				 * (including components of components, etc.).
				 * The component tokens immediately follow
				 * this one. */
} Tcl_Token;

/*
 * Type values defined for Tcl_Token structures. These values are defined as
 * mask bits so that it's easy to check for collections of types.
 *
 * TCL_TOKEN_WORD -		The token describes one word of a command,
 *				from the first non-blank character of the word
 *				(which may be " or {) up to but not including
 *				the space, semicolon, or bracket that
 *				terminates the word. NumComponents counts the
 *				total number of sub-tokens that make up the
 *				word. This includes, for example, sub-tokens
 *				of TCL_TOKEN_VARIABLE tokens.
 * TCL_TOKEN_SIMPLE_WORD -	This token is just like TCL_TOKEN_WORD except
 *				that the word is guaranteed to consist of a
 *				single TCL_TOKEN_TEXT sub-token.
 * TCL_TOKEN_TEXT -		The token describes a range of literal text
 *				that is part of a word. NumComponents is
 *				always 0.
 * TCL_TOKEN_BS -		The token describes a backslash sequence that
 *				must be collapsed. NumComponents is always 0.
 * TCL_TOKEN_COMMAND -		The token describes a command whose result
 *				must be substituted into the word. The token
 *				includes the enclosing brackets. NumComponents
 *				is always 0.
 * TCL_TOKEN_VARIABLE -		The token describes a variable substitution,
 *				including the dollar sign, variable name, and
 *				array index (if there is one) up through the
 *				right parentheses. NumComponents tells how
 *				many additional tokens follow to represent the
 *				variable name. The first token will be a
 *				TCL_TOKEN_TEXT token that describes the
 *				variable name. If the variable is an array
 *				reference then there will be one or more
 *				additional tokens, of type TCL_TOKEN_TEXT,
 *				TCL_TOKEN_BS, TCL_TOKEN_COMMAND, and
 *				TCL_TOKEN_VARIABLE, that describe the array
 *				index; numComponents counts the total number
 *				of nested tokens that make up the variable
 *				reference, including sub-tokens of
 *				TCL_TOKEN_VARIABLE tokens.
 * TCL_TOKEN_SUB_EXPR -		The token describes one subexpression of an
 *				expression, from the first non-blank character
 *				of the subexpression up to but not including
 *				the space, brace, or bracket that terminates
 *				the subexpression. NumComponents counts the
 *				total number of following subtokens that make
 *				up the subexpression; this includes all
 *				subtokens for any nested TCL_TOKEN_SUB_EXPR
 *				tokens. For example, a numeric value used as a
 *				primitive operand is described by a
 *				TCL_TOKEN_SUB_EXPR token followed by a
 *				TCL_TOKEN_TEXT token. A binary subexpression
 *				is described by a TCL_TOKEN_SUB_EXPR token
 *				followed by the TCL_TOKEN_OPERATOR token for
 *				the operator, then TCL_TOKEN_SUB_EXPR tokens
 *				for the left then the right operands.
 * TCL_TOKEN_OPERATOR -		The token describes one expression operator.
 *				An operator might be the name of a math
 *				function such as "abs". A TCL_TOKEN_OPERATOR
 *				token is always preceeded by one
 *				TCL_TOKEN_SUB_EXPR token for the operator's
 *				subexpression, and is followed by zero or more
 *				TCL_TOKEN_SUB_EXPR tokens for the operator's
 *				operands. NumComponents is always 0.
 * TCL_TOKEN_EXPAND_WORD -	This token is just like TCL_TOKEN_WORD except
 *				that it marks a word that began with the
 *				literal character prefix "{*}". This word is
 *				marked to be expanded - that is, broken into
 *				words after substitution is complete.
 */

#define TCL_TOKEN_WORD		1
#define TCL_TOKEN_SIMPLE_WORD	2
#define TCL_TOKEN_TEXT		4
#define TCL_TOKEN_BS		8
#define TCL_TOKEN_COMMAND	16
#define TCL_TOKEN_VARIABLE	32
#define TCL_TOKEN_SUB_EXPR	64
#define TCL_TOKEN_OPERATOR	128
#define TCL_TOKEN_EXPAND_WORD	256

/*
 * Parsing error types. On any parsing error, one of these values will be
 * stored in the error field of the Tcl_Parse structure defined below.
 */

#define TCL_PARSE_SUCCESS		0
#define TCL_PARSE_QUOTE_EXTRA		1
#define TCL_PARSE_BRACE_EXTRA		2
#define TCL_PARSE_MISSING_BRACE		3
#define TCL_PARSE_MISSING_BRACKET	4
#define TCL_PARSE_MISSING_PAREN		5
#define TCL_PARSE_MISSING_QUOTE		6
#define TCL_PARSE_MISSING_VAR_BRACE	7
#define TCL_PARSE_SYNTAX		8
#define TCL_PARSE_BAD_NUMBER		9

/*
 * A structure of the following type is filled in by Tcl_ParseCommand. It
 * describes a single command parsed from an input string.
 */

#define NUM_STATIC_TOKENS 20

typedef struct Tcl_Parse {
    const char *commentStart;	/* Pointer to # that begins the first of one
				 * or more comments preceding the command. */
    int commentSize;		/* Number of bytes in comments (up through
				 * newline character that terminates the last
				 * comment). If there were no comments, this
				 * field is 0. */
    const char *commandStart;	/* First character in first word of
				 * command. */
    int commandSize;		/* Number of bytes in command, including first
				 * character of first word, up through the
				 * terminating newline, close bracket, or
				 * semicolon. */
    int numWords;		/* Total number of words in command. May be
				 * 0. */
    Tcl_Token *tokenPtr;	/* Pointer to first token representing the
				 * words of the command. Initially points to
				 * staticTokens, but may change to point to
				 * malloc-ed space if command exceeds space in
				 * staticTokens. */
    int numTokens;		/* Total number of tokens in command. */
    int tokensAvailable;	/* Total number of tokens available at
				 * *tokenPtr. */
    int errorType;		/* One of the parsing error types defined
				 * above. */

    /*
     * The fields below are intended only for the private use of the parser.
     * They should not be used by functions that invoke Tcl_ParseCommand.
     */

    const char *string;		/* The original command string passed to
				 * Tcl_ParseCommand. */
    const char *end;		/* Points to the character just after the last
				 * one in the command string. */
    Tcl_Interp *interp;		/* Interpreter to use for error reporting, or
				 * NULL. */
    const char *term;		/* Points to character in string that
				 * terminated most recent token. Filled in by
				 * ParseTokens. If an error occurs, points to
				 * beginning of region where the error
				 * occurred (e.g. the open brace if the close
				 * brace is missing). */
    int incomplete;		/* This field is set to 1 by Tcl_ParseCommand
				 * if the command appears to be incomplete.
				 * This information is used by
				 * Tcl_CommandComplete. */
    Tcl_Token staticTokens[NUM_STATIC_TOKENS];
				/* Initial space for tokens for command. This
				 * space should be large enough to accommodate
				 * most commands; dynamic space is allocated
				 * for very large commands that don't fit
				 * here. */
} Tcl_Parse;

/*
 *----------------------------------------------------------------------------
 * The following structure represents a user-defined encoding. It collects
 * together all the functions that are used by the specific encoding.
 */

typedef struct Tcl_EncodingType {
    const char *encodingName;	/* The name of the encoding, e.g. "euc-jp".
				 * This name is the unique key for this
				 * encoding type. */
    Tcl_EncodingConvertProc *toUtfProc;
				/* Function to convert from external encoding
				 * into UTF-8. */
    Tcl_EncodingConvertProc *fromUtfProc;
				/* Function to convert from UTF-8 into
				 * external encoding. */
    Tcl_EncodingFreeProc *freeProc;
				/* If non-NULL, function to call when this
				 * encoding is deleted. */
    ClientData clientData;	/* Arbitrary value associated with encoding
				 * type. Passed to conversion functions. */
    int nullSize;		/* Number of zero bytes that signify
				 * end-of-string in this encoding. This number
				 * is used to determine the source string
				 * length when the srcLen argument is
				 * negative. Must be 1 or 2. */
} Tcl_EncodingType;

/*
 * The following definitions are used as values for the conversion control
 * flags argument when converting text from one character set to another:
 *
 * TCL_ENCODING_START -		Signifies that the source buffer is the first
 *				block in a (potentially multi-block) input
 *				stream. Tells the conversion function to reset
 *				to an initial state and perform any
 *				initialization that needs to occur before the
 *				first byte is converted. If the source buffer
 *				contains the entire input stream to be
 *				converted, this flag should be set.
 * TCL_ENCODING_END -		Signifies that the source buffer is the last
 *				block in a (potentially multi-block) input
 *				stream. Tells the conversion routine to
 *				perform any finalization that needs to occur
 *				after the last byte is converted and then to
 *				reset to an initial state. If the source
 *				buffer contains the entire input stream to be
 *				converted, this flag should be set.
 * TCL_ENCODING_STOPONERROR -	If set, then the converter will return
 *				immediately upon encountering an invalid byte
 *				sequence or a source character that has no
 *				mapping in the target encoding. If clear, then
 *				the converter will skip the problem,
 *				substituting one or more "close" characters in
 *				the destination buffer and then continue to
 *				convert the source.
 */

#define TCL_ENCODING_START		0x01
#define TCL_ENCODING_END		0x02
#define TCL_ENCODING_STOPONERROR	0x04

/*
 * The following definitions are the error codes returned by the conversion
 * routines:
 *
 * TCL_OK -			All characters were converted.
 * TCL_CONVERT_NOSPACE -	The output buffer would not have been large
 *				enough for all of the converted data; as many
 *				characters as could fit were converted though.
 * TCL_CONVERT_MULTIBYTE -	The last few bytes in the source string were
 *				the beginning of a multibyte sequence, but
 *				more bytes were needed to complete this
 *				sequence. A subsequent call to the conversion
 *				routine should pass the beginning of this
 *				unconverted sequence plus additional bytes
 *				from the source stream to properly convert the
 *				formerly split-up multibyte sequence.
 * TCL_CONVERT_SYNTAX -		The source stream contained an invalid
 *				character sequence. This may occur if the
 *				input stream has been damaged or if the input
 *				encoding method was misidentified. This error
 *				is reported only if TCL_ENCODING_STOPONERROR
 *				was specified.
 * TCL_CONVERT_UNKNOWN -	The source string contained a character that
 *				could not be represented in the target
 *				encoding. This error is reported only if
 *				TCL_ENCODING_STOPONERROR was specified.
 */

#define TCL_CONVERT_MULTIBYTE	(-1)
#define TCL_CONVERT_SYNTAX	(-2)
#define TCL_CONVERT_UNKNOWN	(-3)
#define TCL_CONVERT_NOSPACE	(-4)

/*
 * The maximum number of bytes that are necessary to represent a single
 * Unicode character in UTF-8. The valid values should be 3, 4 or 6
 * (or perhaps 1 if we want to support a non-unicode enabled core). If 3 or
 * 4, then Tcl_UniChar must be 2-bytes in size (UCS-2) (the default). If 6,
 * then Tcl_UniChar must be 4-bytes in size (UCS-4). At this time UCS-2 mode
 * is the default and recommended mode. UCS-4 is experimental and not
 * recommended. It works for the core, but most extensions expect UCS-2.
 */

#ifndef TCL_UTF_MAX
#define TCL_UTF_MAX		3
#endif

/*
 * This represents a Unicode character. Any changes to this should also be
 * reflected in regcustom.h.
 */

#if TCL_UTF_MAX > 4
    /*
     * unsigned int isn't 100% accurate as it should be a strict 4-byte value
     * (perhaps wchar_t). 64-bit systems may have troubles. The size of this
     * value must be reflected correctly in regcustom.h and
     * in tclEncoding.c.
     * XXX: Tcl is currently UCS-2 and planning UTF-16 for the Unicode
     * XXX: string rep that Tcl_UniChar represents.  Changing the size
     * XXX: of Tcl_UniChar is /not/ supported.
     */
typedef unsigned int Tcl_UniChar;
#else
typedef unsigned short Tcl_UniChar;
#endif

/*
 *----------------------------------------------------------------------------
 * TIP #59: The following structure is used in calls 'Tcl_RegisterConfig' to
 * provide the system with the embedded configuration data.
 */

typedef struct Tcl_Config {
    const char *key;		/* Configuration key to register. ASCII
				 * encoded, thus UTF-8. */
    const char *value;		/* The value associated with the key. System
				 * encoding. */
} Tcl_Config;

/*
 *----------------------------------------------------------------------------
 * Flags for TIP#143 limits, detailing which limits are active in an
 * interpreter. Used for Tcl_{Add,Remove}LimitHandler type argument.
 */

#define TCL_LIMIT_COMMANDS	0x01
#define TCL_LIMIT_TIME		0x02

/*
 * Structure containing information about a limit handler to be called when a
 * command- or time-limit is exceeded by an interpreter.
 */

typedef void (Tcl_LimitHandlerProc) (ClientData clientData, Tcl_Interp *interp);
typedef void (Tcl_LimitHandlerDeleteProc) (ClientData clientData);

/*
 *----------------------------------------------------------------------------
 * Override definitions for libtommath.
 */

typedef struct mp_int mp_int;
#define MP_INT_DECLARED
typedef unsigned int mp_digit;
#define MP_DIGIT_DECLARED

/*
 *----------------------------------------------------------------------------
 * Definitions needed for Tcl_ParseArgvObj routines.
 * Based on tkArgv.c.
 * Modifications from the original are copyright (c) Sam Bromley 2006
 */

typedef struct {
    int type;			/* Indicates the option type; see below. */
    const char *keyStr;		/* The key string that flags the option in the
				 * argv array. */
    void *srcPtr;		/* Value to be used in setting dst; usage
				 * depends on type.*/
    void *dstPtr;		/* Address of value to be modified; usage
				 * depends on type.*/
    const char *helpStr;	/* Documentation message describing this
				 * option. */
    ClientData clientData;	/* Word to pass to function callbacks. */
} Tcl_ArgvInfo;

/*
 * Legal values for the type field of a Tcl_ArgInfo: see the user
 * documentation for details.
 */

#define TCL_ARGV_CONSTANT	15
#define TCL_ARGV_INT		16
#define TCL_ARGV_STRING		17
#define TCL_ARGV_REST		18
#define TCL_ARGV_FLOAT		19
#define TCL_ARGV_FUNC		20
#define TCL_ARGV_GENFUNC	21
#define TCL_ARGV_HELP		22
#define TCL_ARGV_END		23

/*
 * Types of callback functions for the TCL_ARGV_FUNC and TCL_ARGV_GENFUNC
 * argument types:
 */

typedef int (Tcl_ArgvFuncProc)(ClientData clientData, Tcl_Obj *objPtr,
	void *dstPtr);
typedef int (Tcl_ArgvGenFuncProc)(ClientData clientData, Tcl_Interp *interp,
	int objc, Tcl_Obj *const *objv, void *dstPtr);

/*
 * Shorthand for commonly used argTable entries.
 */

#define TCL_ARGV_AUTO_HELP \
    {TCL_ARGV_HELP,	"-help",	NULL,	NULL, \
	    "Print summary of command-line options and abort", NULL}
#define TCL_ARGV_AUTO_REST \
    {TCL_ARGV_REST,	"--",		NULL,	NULL, \
	    "Marks the end of the options", NULL}
#define TCL_ARGV_TABLE_END \
    {TCL_ARGV_END, NULL, NULL, NULL, NULL, NULL}

/*
 *----------------------------------------------------------------------------
 * Definitions needed for Tcl_Zlib routines. [TIP #234]
 *
 * Constants for the format flags describing what sort of data format is
 * desired/expected for the Tcl_ZlibDeflate, Tcl_ZlibInflate and
 * Tcl_ZlibStreamInit functions.
 */

#define TCL_ZLIB_FORMAT_RAW	1
#define TCL_ZLIB_FORMAT_ZLIB	2
#define TCL_ZLIB_FORMAT_GZIP	4
#define TCL_ZLIB_FORMAT_AUTO	8

/*
 * Constants that describe whether the stream is to operate in compressing or
 * decompressing mode.
 */

#define TCL_ZLIB_STREAM_DEFLATE	16
#define TCL_ZLIB_STREAM_INFLATE	32

/*
 * Constants giving compression levels. Use of TCL_ZLIB_COMPRESS_DEFAULT is
 * recommended.
 */

#define TCL_ZLIB_COMPRESS_NONE	0
#define TCL_ZLIB_COMPRESS_FAST	1
#define TCL_ZLIB_COMPRESS_BEST	9
#define TCL_ZLIB_COMPRESS_DEFAULT (-1)

/*
 * Constants for types of flushing, used with Tcl_ZlibFlush.
 */

#define TCL_ZLIB_NO_FLUSH	0
#define TCL_ZLIB_FLUSH		2
#define TCL_ZLIB_FULLFLUSH	3
#define TCL_ZLIB_FINALIZE	4

/*
 *----------------------------------------------------------------------------
 * Single public declaration for NRE.
 */

typedef int (Tcl_NRPostProc) (ClientData data[], Tcl_Interp *interp,
				int result);

/*
 *----------------------------------------------------------------------------
 * The following constant is used to test for older versions of Tcl in the
 * stubs tables.
 *
 * Jan Nijtman's plus patch uses 0xFCA1BACF, so we need to pick a different
 * value since the stubs tables don't match.
 */

#define TCL_STUB_MAGIC		((int) 0xFCA3BACF)

/*
 * The following function is required to be defined in all stubs aware
 * extensions. The function is actually implemented in the stub library, not
 * the main Tcl library, although there is a trivial implementation in the
 * main library in case an extension is statically linked into an application.
 */

const char *		Tcl_InitStubs(Tcl_Interp *interp, const char *version,
			    int exact);
const char *		TclTomMathInitializeStubs(Tcl_Interp *interp,
			    const char *version, int epoch, int revision);

/*
 * When not using stubs, make it a macro.
 */

#ifndef USE_TCL_STUBS
#define Tcl_InitStubs(interp, version, exact) \
    Tcl_PkgInitStubsCheck(interp, version, exact)
#endif

/*
 * TODO - tommath stubs export goes here!
 */

/*
 * Public functions that are not accessible via the stubs table.
 * Tcl_GetMemoryInfo is needed for AOLserver. [Bug 1868171]
 */

#define Tcl_Main(argc, argv, proc) Tcl_MainEx(argc, argv, proc, \
	    (Tcl_FindExecutable(argv[0]), (Tcl_CreateInterp)()))
EXTERN void		Tcl_MainEx(int argc, char **argv,
			    Tcl_AppInitProc *appInitProc, Tcl_Interp *interp);
EXTERN const char *	Tcl_PkgInitStubsCheck(Tcl_Interp *interp,
			    const char *version, int exact);
#if defined(TCL_THREADS) && defined(USE_THREAD_ALLOC)
EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
#endif

/*
 *----------------------------------------------------------------------------
 * Include the public function declarations that are accessible via the stubs
 * table.
 */

#include "tclDecls.h"

/*
 * Include platform specific public function declarations that are accessible
 * via the stubs table.
 */

#include "tclPlatDecls.h"

/*
 *----------------------------------------------------------------------------
 * The following declarations either map ckalloc and ckfree to malloc and
 * free, or they map them to functions with all sorts of debugging hooks
 * defined in tclCkalloc.c.
 */

#ifdef TCL_MEM_DEBUG

#   define ckalloc(x) \
    ((VOID *) Tcl_DbCkalloc((unsigned)(x), __FILE__, __LINE__))
#   define ckfree(x) \
    Tcl_DbCkfree((char *)(x), __FILE__, __LINE__)
#   define ckrealloc(x,y) \
    ((VOID *) Tcl_DbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
#   define attemptckalloc(x) \
    ((VOID *) Tcl_AttemptDbCkalloc((unsigned)(x), __FILE__, __LINE__))
#   define attemptckrealloc(x,y) \
    ((VOID *) Tcl_AttemptDbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))

#else /* !TCL_MEM_DEBUG */

/*
 * If we are not using the debugging allocator, we should call the Tcl_Alloc,
 * et al. routines in order to guarantee that every module is using the same
 * memory allocator both inside and outside of the Tcl library.
 */

#   define ckalloc(x) \
    ((VOID *) Tcl_Alloc((unsigned)(x)))
#   define ckfree(x) \
    Tcl_Free((char *)(x))
#   define ckrealloc(x,y) \
    ((VOID *) Tcl_Realloc((char *)(x), (unsigned)(y)))
#   define attemptckalloc(x) \
    ((VOID *) Tcl_AttemptAlloc((unsigned)(x)))
#   define attemptckrealloc(x,y) \
    ((VOID *) Tcl_AttemptRealloc((char *)(x), (unsigned)(y)))
#   undef  Tcl_InitMemory
#   define Tcl_InitMemory(x)
#   undef  Tcl_DumpActiveMemory
#   define Tcl_DumpActiveMemory(x)
#   undef  Tcl_ValidateAllMemory
#   define Tcl_ValidateAllMemory(x,y)

#endif /* !TCL_MEM_DEBUG */

#ifdef TCL_MEM_DEBUG
#   define Tcl_IncrRefCount(objPtr) \
	Tcl_DbIncrRefCount(objPtr, __FILE__, __LINE__)
#   define Tcl_DecrRefCount(objPtr) \
	Tcl_DbDecrRefCount(objPtr, __FILE__, __LINE__)
#   define Tcl_IsShared(objPtr) \
	Tcl_DbIsShared(objPtr, __FILE__, __LINE__)
#else
#   define Tcl_IncrRefCount(objPtr) \
	++(objPtr)->refCount
    /*
     * Use do/while0 idiom for optimum correctness without compiler warnings.
     * http://c2.com/cgi/wiki?TrivialDoWhileLoop
     */
#   define Tcl_DecrRefCount(objPtr) \
	do { if (--(objPtr)->refCount <= 0) TclFreeObj(objPtr); } while(0)
#   define Tcl_IsShared(objPtr) \
	((objPtr)->refCount > 1)
#endif

/*
 * Macros and definitions that help to debug the use of Tcl objects. When
 * TCL_MEM_DEBUG is defined, the Tcl_New declarations are overridden to call
 * debugging versions of the object creation functions.
 */

#ifdef TCL_MEM_DEBUG
#  undef  Tcl_NewBignumObj
#  define Tcl_NewBignumObj(val) \
     Tcl_DbNewBignumObj(val, __FILE__, __LINE__)
#  undef  Tcl_NewBooleanObj
#  define Tcl_NewBooleanObj(val) \
     Tcl_DbNewBooleanObj(val, __FILE__, __LINE__)
#  undef  Tcl_NewByteArrayObj
#  define Tcl_NewByteArrayObj(bytes, len) \
     Tcl_DbNewByteArrayObj(bytes, len, __FILE__, __LINE__)
#  undef  Tcl_NewDoubleObj
#  define Tcl_NewDoubleObj(val) \
     Tcl_DbNewDoubleObj(val, __FILE__, __LINE__)
#  undef  Tcl_NewIntObj
#  define Tcl_NewIntObj(val) \
     Tcl_DbNewLongObj(val, __FILE__, __LINE__)
#  undef  Tcl_NewListObj
#  define Tcl_NewListObj(objc, objv) \
     Tcl_DbNewListObj(objc, objv, __FILE__, __LINE__)
#  undef  Tcl_NewLongObj
#  define Tcl_NewLongObj(val) \
     Tcl_DbNewLongObj(val, __FILE__, __LINE__)
#  undef  Tcl_NewObj
#  define Tcl_NewObj() \
     Tcl_DbNewObj(__FILE__, __LINE__)
#  undef  Tcl_NewStringObj
#  define Tcl_NewStringObj(bytes, len) \
     Tcl_DbNewStringObj(bytes, len, __FILE__, __LINE__)
#  undef  Tcl_NewWideIntObj
#  define Tcl_NewWideIntObj(val) \
     Tcl_DbNewWideIntObj(val, __FILE__, __LINE__)
#endif /* TCL_MEM_DEBUG */

/*
 *----------------------------------------------------------------------------
 * Macros for clients to use to access fields of hash entries:
 */

#define Tcl_GetHashValue(h) ((h)->clientData)
#define Tcl_SetHashValue(h, value) ((h)->clientData = (ClientData) (value))
#define Tcl_GetHashKey(tablePtr, h) \
	((void *) (((tablePtr)->keyType == TCL_ONE_WORD_KEYS || \
		    (tablePtr)->keyType == TCL_CUSTOM_PTR_KEYS) \
		   ? (h)->key.oneWordValue \
		   : (h)->key.string))

/*
 * Macros to use for clients to use to invoke find and create functions for
 * hash tables:
 */

#undef  Tcl_FindHashEntry
#define Tcl_FindHashEntry(tablePtr, key) \
	(*((tablePtr)->findProc))(tablePtr, (const char *)(key))
#undef  Tcl_CreateHashEntry
#define Tcl_CreateHashEntry(tablePtr, key, newPtr) \
	(*((tablePtr)->createProc))(tablePtr, (const char *)(key), newPtr)

/*
 *----------------------------------------------------------------------------
 * Macros that eliminate the overhead of the thread synchronization functions
 * when compiling without thread support.
 */

#ifndef TCL_THREADS
#undef  Tcl_MutexLock
#define Tcl_MutexLock(mutexPtr)
#undef  Tcl_MutexUnlock
#define Tcl_MutexUnlock(mutexPtr)
#undef  Tcl_MutexFinalize
#define Tcl_MutexFinalize(mutexPtr)
#undef  Tcl_ConditionNotify
#define Tcl_ConditionNotify(condPtr)
#undef  Tcl_ConditionWait
#define Tcl_ConditionWait(condPtr, mutexPtr, timePtr)
#undef  Tcl_ConditionFinalize
#define Tcl_ConditionFinalize(condPtr)
#endif /* TCL_THREADS */

/*
 *----------------------------------------------------------------------------
 * Deprecated Tcl functions:
 */

#ifndef TCL_NO_DEPRECATED
#   undef  Tcl_EvalObj
#   define Tcl_EvalObj(interp,objPtr) \
	Tcl_EvalObjEx((interp),(objPtr),0)
#   undef  Tcl_GlobalEvalObj
#   define Tcl_GlobalEvalObj(interp,objPtr) \
	Tcl_EvalObjEx((interp),(objPtr),TCL_EVAL_GLOBAL)

/*
 * These function have been renamed. The old names are deprecated, but we
 * define these macros for backwards compatibilty.
 */

#   define Tcl_Ckalloc		Tcl_Alloc
#   define Tcl_Ckfree		Tcl_Free
#   define Tcl_Ckrealloc	Tcl_Realloc
#   define Tcl_Return		Tcl_SetResult
#   define Tcl_TildeSubst	Tcl_TranslateFileName
#   define panic		Tcl_Panic
#   define panicVA		Tcl_PanicVA
#endif /* !TCL_NO_DEPRECATED */

/*
 *----------------------------------------------------------------------------
 * Convenience declaration of Tcl_AppInit for backwards compatibility. This
 * function is not *implemented* by the tcl library, so the storage class is
 * neither DLLEXPORT nor DLLIMPORT.
 */

extern Tcl_AppInitProc Tcl_AppInit;

#endif /* RC_INVOKED */

/*
 * end block for C++
 */

#ifdef __cplusplus
}
#endif

#endif /* _TCL */

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */