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
|
%% @texfile{
%% filename = "tugboat.sty",
%% version = "1.14c",
%% date = "14 October 1996",
%% time = "14:26:08",
%% filetype = "Plain TeX macros for TUGboat",
%% copyright = "Copyright (C) TeX Users Group.
%% Copying of this file is authorized only if either:
%% (1) you make absolutely no changes to your copy, OR
%% (2) if you do make changes, you first rename it to some
%% other name.",
%% author = "TeX Users Group",
%% address = "TeX Users Group,
%% 1850 Union Street, \#1637,
%% San Francisco, CA 94123,
%% USA",
%% telephone = "415-982-8449",
%% FAX = "415-982-8559",
%% email = "Internet: TUGboat@ams.org",
%% codetable = "ISO/ASCII",
%% checksum = "2238 6284 69130",
%% keywords = "tex users group, tugboat, plain tex",
%% supported = "yes",
%% abstract = "This file contains the plain-based macros
%% for preparation of TUGboat, the Communications
%% of the TeX Users Group.",
%% docstring = "The checksum field above contains a CRC-16
%% checksum as the first value, followed by the
%% equivalent of the standard UNIX wc (word
%% count) utility output of lines, words, and
%% characters. This is produced by Robert
%% Solovay's checksum utility.",
%% }
%% *********************************************************
%%
%% TeXing with this file also requires the following files:
%% TUGBOAT.CMN (version 1.08+)
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% TUGBOAT.STY
\def\thistubstyle{plain}
\def\fileversion{v1.14c}
\def\filedate{14 October 1996}
% general items
\def\makeatletter{\catcode`\@=11 }
\makeatletter % used, as in PLAIN, in protected control sequences
% stop reading this file if it's been loaded already
\ifx\tugstyloaded@\thistubstyle\makeatother\initializearticle
\endinput\else\let\tugstyloaded@\thistubstyle\fi
\message{File `TUGBOAT.STY' \fileversion \space\space <\filedate>}
\input tugboat.cmn % macros common to tugboat.sty and
% ltugboat.sty (latex style file)
% some things with the same names as in, or reiterated from, AMS-TeX
\def\document{} % override an AMS-TeX convention
\output{\output@}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Directory.
%
% ** fonts
% ** page dimensions
% ** headers/footers
% ** page adjustment
% ** output
% ** general mechanism for tags
% ** titles, authors, addresses
% ** heads
% ** text and subtext
% ** lists
% ** verbatim
% ** figures
% ** utilities
% ** initialization
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** fonts *****
%
% Struts give ascenders and descenders to assist in baseline alignment
% (e.g. of adjoining vertical boxes); useful only with text fonts.
%
% \strut is defined in PLAIN . The structure of \strutt is equivalent.
\newbox\struttbox
\def\strutt{\relax\ifmmode\copy\struttbox\else\unhcopy\struttbox\fi}
% Struts are given the following dimensions for use in TUGboat:
%
% \strut = height/depth of parenthesis in current font
% (not the same as PLAIN)
% \strutt height + depth = \normalbaselineskip,
% height = same as \strut
% (equivalent to PLAIN \strut )
% The fonts below are sufficient for most ordinary TUGboat production.
% Additional titling fonts are defined elsewhere, and occasionally an
% extra font will be needed for a particular item (e.g. the device
% charts) and defined in that file.
% All PLAIN CM fonts.
\font\tenrm=cmr10
\font\ninerm=cmr9
\font\eightrm=cmr8
\font\sevenrm=cmr7
\font\sixrm=cmr6
\font\fiverm=cmr5
\font\teni=cmmi10 \skewchar\teni='177
\font\ninei=cmmi9 \skewchar\ninei='177
\font\eighti=cmmi8 \skewchar\eighti='177
\font\seveni=cmmi7 \skewchar\seveni='177
\font\sixi=cmmi6 \skewchar\sixi='177
\font\fivei=cmmi5 \skewchar\fivei='177
\font\tensy=cmsy10 \skewchar\tensy='60
\font\ninesy=cmsy9 \skewchar\ninesy='60
\font\eightsy=cmsy8 \skewchar\eightsy='60
\font\sevensy=cmsy7 \skewchar\sevensy='60
\font\sixsy=cmsy6 \skewchar\sixsy='60
\font\fivesy=cmsy5 \skewchar\fivesy='60
\font\tenex=cmex10
\font\tenbf=cmbx10
\font\ninebf=cmbx9
\font\eightbf=cmbx8
\font\sevenbf=cmbx7
\font\sixbf=cmbx6
\font\fivebf=cmbx5
\font\tentt=cmtt10
\font\ninett=cmtt9
\font\eighttt=cmtt8
\font\tensl=cmsl10
\font\ninesl=cmsl9
\font\eightsl=cmsl8
\font\sevensl=cmti7 % Would use cmsl7 if it were standard.
% Currently needed only for \def of \LaTeX
\font\tenit=cmti10
\font\nineit=cmti9
\font\eightit=cmti8
\font\sevenit=cmti7
\font\tenuit=cmu10
\font\tenbfsl=cmbxsl10
\font\tensmc=cmcsc10
\font\ninesmc=cmcsc10 % redefine if cmcsc9 and/or cmcsc8 exist
\font\eightsmc=cmcsc10
\font\tentex=cmtex10 % for ASCII character set
\def\mit{\fam\@ne} % from plain
\def\cal{\fam\tw@} % from plain
\def\sy{\cal}
% cmss fonts are not needed all the time. Permit as-needed access.
\def\LoadSansFonts{%
\global\font\twelvess=cmss10 scaled \magstep1
\global\font\tenss=cmss10
\global\font\niness=cmss9
\global\font\eightss=cmss8
\addto\tenpoint{\def\ssf{\tenss}}
\addto\ninepoint{\def\ssf{\niness}}
\addto\eightpoint{\def\ssf{\eightss}}
\gdef\LoadSansFonts{}}
% TUGboat section heads
\font \seventeenssb=cmssbx10 scaled \magstep3
\font \twelvessb=cmssbx10 scaled \magstep1
\newfam\sectitlefam
\textfont\sectitlefam=\seventeenssb \scriptfont\sectitlefam=\twelvessb
% \stbaselineskip set in tugboat.com
\def\sectitlefont{%
\fam\sectitlefam \seventeenssb \baselineskip=\stbaselineskip }
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** Definitions of \tenpoint, \ninepoint, etc. *****
%
% Following is a facility for adding commands to \tenpoint, \ninepoint
% and \eightpoint. \LoadSansFonts uses this technique above.
% Also used to add math families, as with:
% \addto\tenpoint{\textfont\frakfam...}
% to add a Fraktur family.
%
\def\addto#1#2{%
\csname @addsto\string#1\endcsname=
\expandafter{\the\csname @addsto\string#1\endcsname#2}}
\def\@additionsto#1{\expandafter\the\csname @addsto\string#1\endcsname}
\expandafter\newtoks\csname @addsto\string\tenpoint\endcsname
\expandafter\newtoks\csname @addsto\string\ninepoint\endcsname
\expandafter\newtoks\csname @addsto\string\eightpoint\endcsname
\newskip\ttglue
\def\setttglue{%
\edef\@thefont{\the\font}% to restore this font after the setting
\tt \ttglue=.5em plus .25em minus .15em
\@thefont}
% We assume that \scriptscriptfonts remain the same throughout
\scriptscriptfont\z@=\fiverm
\scriptscriptfont\@ne=\fivei
\scriptscriptfont\tw@=\fivesy
\scriptscriptfont\thr@@=\tenex
\scriptscriptfont\bffam=\sixbf
\newdimen\normaltenpointstretch \normaltenpointstretch=1.6667pt
\def\NormalTenPointSpacing{\AdjustNormalSpacing\tenpoint{}}
\def\StretchyTenPointSpacing{\AdjustNormalSpacing\tenpoint{2.4}}
\def\tenpoint{%
\normalbaselineskip=12pt
\abovedisplayskip=3pt plus 3pt minus 1pt
\belowdisplayskip=3pt plus 3pt minus 1pt
\abovedisplayshortskip=0pt plus 3pt
\belowdisplayshortskip=1pt plus 3pt minus 1pt
\def\rm{\fam\z@\tenrm}%
\textfont\z@=\tenrm \scriptfont\z@=\sevenrm
\def\oldstyle{\fam\@ne\teni}%
\textfont\@ne=\teni \scriptfont\@ne=\seveni
\textfont\tw@=\tensy \scriptfont\tw@=\sevensy
\textfont\thr@@=\tenex \scriptfont\thr@@=\tenex
\def\it{\fam\itfam\tenit}%
\textfont\itfam=\tenit \scriptfont\itfam=\sevenit
\def\sl{\fam\slfam\tensl}%
\textfont\slfam=\tensl \scriptfont\slfam=\sevensl
\def\bf{\def\sl{\tenbfsl}\fam\bffam\tenbf}%
\textfont\bffam=\tenbf \scriptfont\bffam=\eightbf
\def\smc{\tensmc}%
\def\SMC{\ninerm}%
\def\tt{\tentt}%
\setttglue
\def\upright{\tenuit}%
\setbox\strutbox=\hbox{\vrule height7.5pt depth2.5pt width\z@}%
\setbox\struttbox=\hbox{\vrule height8.5pt depth3.5pt width\z@}%
\normalbaselines \rm
\@additionsto\tenpoint}
\tenpoint % initialize -- default font
\newdimen\normalninepointstretch \normalninepointstretch=1.5pt
\def\NormalNinePointSpacing{\AdjustNormalSpacing\ninepoint{}}
\def\StretchyNinePointSpacing{\AdjustNormalSpacing\ninepoint{2.4}}
\def\ninepoint{\normalbaselineskip=11pt
\abovedisplayskip=2.5pt plus 2.5pt minus 1pt
\belowdisplayskip=2.5pt plus 2.5pt minus 1pt
\abovedisplayshortskip=0pt plus 2.5pt
\belowdisplayshortskip=1pt plus 2.5pt minus 1pt
\def\rm{\fam\z@\ninerm}%
\textfont\z@=\ninerm \scriptfont\z@=\sevenrm
\def\oldstyle{\fam\@ne\ninei}%
\textfont\@ne=\ninei \scriptfont\@ne=\seveni
\textfont\tw@=\ninesy \scriptfont\tw@=\sevensy
\def\it{\fam\itfam\nineit}%
\textfont\itfam=\nineit
\def\sl{\fam\slfam\ninesl}%
\textfont\slfam=\ninesl
\def\bf{\fam\bffam\ninebf}%
\textfont\bffam=\ninebf \scriptfont\bffam=\sevenbf
\def\smc{\ninesmc}%
\def\SMC{\eightrm}%
\def\tt{\ninett}%
\setttglue
\setbox\strutbox=\hbox{\vrule height 6.75pt depth 2.25pt width\z@}%
\setbox\struttbox=\hbox{\vrule height 7.75pt depth 3.25pt width\z@}%
\normalbaselines \rm
\@additionsto\ninepoint }
% The following setting can be used when baselineskip = 10pt
% \setbox\struttbox=\hbox{\vrule height 7.25pt depth 2.75pt width\z@}%
\newdimen\normaleightpointstretch \normaleightpointstretch=1.333pt
\def\NormalEightPointSpacing{\AdjustNormalSpacing\eightpoint{}}
\def\StretchyEightPointSpacing{\AdjustNormalSpacing\eightpoint{2.25}}
\def\eightpoint{\normalbaselineskip=10pt
\abovedisplayskip=2pt plus 2pt minus 1pt
\belowdisplayskip=2pt plus 2pt minus 1pt
\abovedisplayshortskip=0pt plus 2pt
\belowdisplayshortskip=1pt plus 2pt minus 1pt
\def\rm{\fam\z@\eightrm}%
\textfont\z@=\eightrm \scriptfont\z@=\sixrm
\def\oldstyle{\fam\@ne\eighti}%
\textfont\@ne=\eighti \scriptfont\@ne=\sixi
\textfont\tw@=\eightsy \scriptfont\tw@=\sixsy
% \textfont\thr@@=\eightex \scriptfont\thr@@=\eightex
\def\it{\fam\itfam\eightit}%
\textfont\itfam=\eightit
\def\sl{\fam\slfam\eightsl}%
\textfont\slfam=\eightsl
\def\bf{\fam\bffam\eightbf}%
\textfont\bffam=\eightbf \scriptfont\bffam=\sixbf
\def\smc{\eightsmc}%
\def\tt{\eighttt}%
\setttglue
\setbox\strutbox=\hbox{\vrule height 6pt depth 2pt width\z@}%
\setbox\struttbox=\hbox{\vrule height 7pt depth 3pt width\z@}%
\normalbaselines \rm
\@additionsto\eightpoint }
% The 8pt cap/small cap font is not loaded. See a corresponding remark
% above for the 9pt csc font.
% this is equivalent to baselineskip = 9pt
% \setbox\struttbox=\hbox{\vrule height 6.5pt depth 2.5pt width\z@}%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Following will allow text to be a bit stretchier than the built-in
% setting; TeXbook, page 433, 355
\def\@setstretch{\fontdimen3\the\font=}
\def\AdjustNormalSpacing#1#2{% #1=pointsize, #2=adjustment factor
{\T@stDimen=#2\csname normal\expandafter\gobble\string#1stretch\endcsname
#1%
\rm\@setstretch\T@stDimen
\it\@setstretch\T@stDimen
\bf\@setstretch\T@stDimen
}}
% Anticipated changes to this font handling scheme:
%
% Dynamic loading of fonts, probably in groups according to size
% Removal of \rm, \bf, etc., from \*point expansions, replacement
% by generic \rm, \bf, etc. definitions
% Mechanism for switching neatly between serif and sans-serif
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** page dimensions *****
%
% vertical dimensions
\newdimen\trimlgt \trimlgt=11in % 10.5in (vols 7-9)
\newdimen\headmargin \headmargin=3.5pc % 2.5pc (vols 7-9)
\newdimen\pagelgt
\newdimen\rheadlgt \rheadlgt=2.5pc % + headmargin = 6pc = 1in
\newdimen\toplgt \toplgt=\z@
\newdimen\normalcollgt \normalcollgt=54pc % 52pc for 5#2
\newdimen\collgt \collgt=\normalcollgt
\newdimen\Collgt
\maxdepth=2pt
\newdimen\botlgt \botlgt=\z@
\newdimen\rfootlgt \rfootlgt=2pc
\newif\ifThisIsFirstPage \ThisIsFirstPagefalse
\def\resetpagelgt{%
\pagelgt=\collgt \Collgt=\collgt
\advance\pagelgt by \rheadlgt
\ifThisIsFirstPage \advance\Collgt by-\toplgt
\advance\Collgt by-\botlgt \fi
\advance\pagelgt by \maxdepth
\global\advance\pagelgt by \rfootlgt
\global\vsize=\Collgt }
\def\resetfpagelgt{%
\global\ThisIsFirstPagetrue
\resetpagelgt } % exclude special first page material
\resetpagelgt
\raggedbottom
% horizontal dimensions
\newdimen\colwd
\newdimen\intercolwd \intercolwd=\z@
\newdimen\pagewd \pagewd=39pc
\newdimen\trimwd \trimwd=\pagewd
\newdimen\oddleftindent \oddleftindent\z@
\newdimen\evenleftindent \evenleftindent\z@
\def\onecol{\colwd=\pagewd \OneCol }
\newdimen\onenarrowcolwd \onenarrowcolwd=30pc
\def\onenarrow{\colwd=\onenarrowcolwd \OneCol }
% before 5#2, `narrow' was 34pc
\newdimen\onemediumcolwd \onemediumcolwd=34pc
\def\onemedium{\colwd=\onemediumcolwd \OneCol }
\newdimen\twocolcolwd \twocolcolwd=18.75pc
\def\twocol{\colwd=\twocolcolwd \intercolwd=1.5pc \TwoCol }
\newdimen\threecolcolwd \threecolcolwd=12pc
\def\threecol{\colwd=\threecolcolwd \intercolwd=1.5pc \ThreeCol }
\def\CenterOneCol{%
\oddleftindent\pagewd
\advance\oddleftindent -\colwd
\divide\oddleftindent\tw@
\evenleftindent\oddleftindent
\coloffset\ifodd\pageno\oddleftindent\else\evenleftindent\fi
}
\def\OneCol{\hsize=\colwd \CenterOneCol \numcols=1 \resetmaxcols}
\def\ZeroLeftIndents{\oddleftindent\z@ \evenleftindent\z@ \coloffset\z@ }
\def\TwoCol{\hsize=\colwd \numcols=2 \resetmaxcols \ZeroLeftIndents}
\def\ThreeCol{\hsize=\colwd \numcols=3 \resetmaxcols \ZeroLeftIndents}
\def\resetmaxcols{%
\ifnum\numcols>\maxcols
\ifOverlaysinTeX \maxcols=\numcols
\else \immediate\write\sixt@@n{%
The new setting of \string\numcols is greater than \string\maxcols.^^J
Either allow overlays in TeX or increase \string\maxcols.}\fi
\fi}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** headers/footers *****
%
\def\pagenoprefix{}
\def\rtitlex{\def\tubfont{\tenpoint\rm}\TUB, \volx }
\def\rtitle{%
\hbox to \pagewd{%
\tenrm
\makestrut[10pt;\z@]%
\ifodd\pageno \rtitlex\qquad\midrtitle\hfil\pagenoprefix\number\pageno
\else \pagenoprefix\number\pageno\hfil\midrtitle\qquad\rtitlex \fi
}%
}
\def\runhead{\vbox to \rheadlgt{\rtitle \vfil }}
\def\rfoot{%
\hbox to \pagewd{%
\tenrm
\makestrut[\z@;0.5pc]%
\midrtitle\hfil\midrtitle
}%
}
\def\runfoot{\vbox to \rfootlgt{\vfil \rfoot }}
% Macros to produce extra running heads for stripping onto pages
% received as camera copy. Format must be preset to \OneCol, and
% start on a new page.
% Generate 5 (4 + normal running head) per page.
\def\DrawT@pLines{%
\vskip\topskip
\ulap{%
\line{%
\raise 1ex\rlap{\leaders\hrule\hskip\pagewd}%
\leaders\hrule\hfill
}}
\medskip}
\def\r@nhead{%
\vbox to .23\vsize{%
\basezero \hsize=\pagewd \vfil
\topregister \vskip\headmargin \runhead \DrawT@pLines }
\medskip
\advancepageno }
\def\nextrunner{%
\ifnum\T@stCount>0
\ifnum\T@stCount>5 \TestCount=5 \else\TestCount=\T@stCount \fi
\advance\T@stCount by-\TestCount
\DrawT@pLines % always one at top of page
\loop\ifnum\TestCount>1 \r@nhead \advance\TestCount by\m@ne \repeat
\newpage
\def\@next{\nextrunner}%
\else \def\@next{}%
\fi
\@next }
% Use \ExtraRunheads to generate running heads for stripping (e.g. for
% author-supplied camera-ready copy). E.g., ``\ExtraRunheads 12, {}.'' will
% generate 12 TUGboat running heads, up to 5 per page, starting with
% the current page number.
\def\ExtraRunheads #1, #2.{%
\T@stCount=#1
\gdef\pageprefix{#2}% % as in A-10 for appendices; not used just now
\nextrunner }
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** insertions *****
%
\newif\if@floatable \@floatabletrue % sometimes we don't want
\def\nofloat{\@floatablefalse} % midinsertions to float
% redefine \@ins to avoid the \par of PLAIN
\def\@ins{\begingroup\setbox\z@\vbox\bgroup}
\newinsert\botins
\newif\ifp@ge \newif\if@mid \newif\if@bot
\def\topinsert{\@midfalse\p@gefalse\@botfalse\@ins}
\def\botinsert{\@midfalse\p@gefalse\@bottrue\@ins}
\def\midinsert{\@midtrue\@botfalse\@ins}
\def\pageinsert{\@midfalse\@botfalse\p@getrue\@ins}
\skip\botins=\z@skip
\count\botins=1000
\dimen\botins=\maxdimen
\def\endinsert{\egroup % finish the \vbox
\gdef\@next{}%
\if@mid \dimen@\ht\z@ \advance\dimen@\dp\z@
\advance\dimen@12\p@ \advance\dimen@\pagetotal
\if@floatable
\ifdim\dimen@>\pagegoal\@midfalse\@botfalse\p@gefalse\fi\fi
\fi
\if@mid
\vskip\abovedisplayskip
\box\z@
\vskip\belowdisplayskip
\gdef\@next{\@asifbelowdisplay}%
\else\insert\if@bot\botins\else\topins\fi
{\penalty100 % floating insertion
\if@bot\medskip\nobreak\fi
\splittopskip\z@skip
\splitmaxdepth\maxdimen \floatingpenalty\z@
\ifp@ge \dimen@\dp\z@
\vbox to\vsize{\unvbox\z@\kern-\dimen@}% depth is zero
\else \box\z@\fi
\if@bot\else\medskip\fi
}%
\fi\endgroup\@next}
% Footnotes are mainly supported by PLAIN format, with these
% exceptions.
\skip\footins=10pt
\def\footnoterule{\kern-5pt
\hrule width 5pc \kern 4.6pt } % the \hrule is .4pt high
\newif\ifDelayFirstPar \DelayFirstParfalse
\def\vfootnote#1{\ifFirstPar \DelayFirstPartrue \fi
\insert\footins\bgroup
\interlinepenalty\interfootnotelinepenalty
\splittopskip\ht\strutbox % top baseline for broken footnotes
\splitmaxdepth\dp\strutbox \floatingpenalty\@MM
\leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip
\rm \parindent=\normalparindent % always indent footnotes; added for TUGboat
\textindent{#1}\makestrut[10pt;\z@]\futurelet\next\fo@t}
\def\@foot{\strut\egroup
\ifDelayFirstPar \SetupFirstPar \global\DelayFirstParfalse \fi }
\newif\ifFirstPar \FirstParfalse
\def\SetupFirstPar{\global\parindent=\z@ \global\FirstPartrue }
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** output *****
%
% Reorganize \pagecontents from PLAIN to put footnotes at very
% bottom of page, even if \raggedbottom. Also add bottom insertions.
\def\pagecontents{%
\ifvoid\topins\else\unvbox\topins\fi
\dimen@=\dp\@cclv \unvbox\@cclv % open up \box255
\ifr@ggedbottom \kern-\dimen@ \vfil \fi
\ifvoid\footins\else % footnote info is present
\vskip\skip\footins
\footnoterule
\unvbox\footins\fi
\ifvoid\botins\else
\vskip\skip\botins
\unvbox\botins\fi }
% Trim (registration) marks may or may not be placed around the pages;
% Overlaying may or may not be done within TeX (as opposed
% to the device driver).
\newif\ifTrimmarks \Trimmarksfalse
\newif\ifOverlaysinTeX \OverlaysinTeXtrue
% All columns containing data are formatted by \midpage. Trim marks
% are put on all columns, but running heads only on the last column
% (i.e. column number = \numcols)
\def\midpage#1{%
\vbox{
\basezero
\hrule height\z@ depth\z@ width\p@
\ifTrimmarks
\vskip-1in % default offset for laser printers
% this puts top trim at edge of paper
\vbox to \trimlgt \bgroup
\topregister
\vskip \headmargin
\else
\vskip-\rheadlgt % this puts runhead above default offset
\fi
\vbox to \pagelgt{
\ifnum\xcol=\numcols \runhead \else \vbox to \rheadlgt{}\fi
\ifThisIsFirstPage \firsthead \fi
\hbox to \pagewd{#1} % \vsize applied in \pagebody
\ifThisIsFirstPage \firstfoot \fi
\vfil % if no depth, avoid underfull box
\ifnum\xcol=\numcols \runfoot \else \vbox to \rfootlgt{}\fi
}
\ifTrimmarks \vfill \botregister \egroup \fi
}}
% The production version includes trim marks, which are required
% on photographic paper, but are unsuitable for laser printer output
% (because they land at the edges of the page). For multiple
% column output, allowance is made for column overlays either
% within TeX or by the driver. The default is to have all
% overlays done within TeX, but large pages or matters of efficiency
% may dictate that driver-overlay is more appropriate.
% When the overlaying is done within TeX, the .dvi contains just
% one page for each page to be printed. However, in the case
% that a driver is to do the overlaying we must anticipate that
% it will not be smart enough to properly overlay different numbers
% of .dvi pages for different printed pages (e.g. in the case that
% one job has both single- and double-column layout). Thus, for
% each printed page, TeX constructs a constant number (=\maxcols)
% of .dvi pages. Columns 1 through and including \numcols will
% be usual .dvi pages containing information for the typeset columns.
% Upon reaching column number \numcols, TeX will `fill out' the
% printed page with empty columns to \maxcols.
% set up auxiliary `page numbers'
% \pageno = \count0 as used in PLAIN
% \xcol is the column number within a page; ranges from 1 to \maxcols
\countdef\xcol=1 \xcol=1
% \spoolno is the ordinal number of `.dvi' pages (i.e. the number
% of \shipouts performed)
\countdef\spoolno=2 \spoolno=0
\def\newcol{\endgraf\vfill\eject}
\def\newpage{%
\vfill\eject
\loop
\ifnum\xcol>1
{\leavevmode\endgraf\vfill\eject} % \xcol is advanced in the output routine
\repeat
}
\newcount\numcols % `real' number of columns
\newcount\@maxcolsofar % internal counter for box allocation
\@maxcolsofar=0
\newcount\maxcols % job-wide maximum number of columns
\maxcols=2
% save the column or ship it out
\def\@saveorship{%
\ifOverlaysinTeX
\ifnum\xcol>\@maxcolsofar % if we need another column box allocated
\global\advance\@maxcolsofar\@ne
\newboxcs{column\number\xcol}%
\fi
\global\setboxcs{column\number\xcol}%
\else
\global\advance\spoolno\@ne
\shipout
\fi
}
% horizontal offset of column from left edge of page
\newdimen\coloffset \coloffset\z@
\def\incrcoloffset{%
\global\advance\coloffset\colwd
\global\advance\coloffset\intercolwd
}
\def\output@{%
\@saveorship\midpage{\kern\coloffset\pagebody\hfil}
\incrcoloffset
\ifnum\xcol=\numcols % if at `real' last column, fill out page with
\loop % empty columns
\ifnum\xcol<\maxcols
\global\advance\xcol\@ne
\@saveorship\midpage{\vbox to \collgt{}\hfil}
\repeat
\fi
\ifnum\xcol=\maxcols % put page together if TeX is overlaying
\ifOverlaysinTeX
\global\advance\spoolno\@ne
\shipout\hbox{%
\xcol=1
\loop \rlap{\boxcs{column\number\xcol}}%
\ifnum\xcol<\maxcols
\global\advance\xcol\@ne
\repeat
\hbox to \pagewd{}%
}%
\fi
\D@EndPage % possible shortening of next page
\global\coloffset\ifodd\pageno\oddleftindent\else\evenleftindent\fi
\global\xcol=1
\else
\global\advance\xcol\@ne
\fi
\ExecuteNextDC % possible `Delayed Command'
}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** page adjustment *****
%
% In the absence of automatic column-balancing, provide a mechanism
% for manually shortening a specified page.
\newif\ifSh@rtPage \Sh@rtPagefalse
\newif\ifSh@rtPagePending \Sh@rtPagePendingfalse
\newcount\Sh@rtPageNo
\newdimen\Sh@rtPageLgt
\def\@to{to} \def\@by{by}
% #1 = to/by; #2 = \dimen; #3 = <dimen>; #4 = * of Shorten*Page
\def\@toby#1#2#3#4{%
\def\@tb{#1}%
\ifx \@tb\@to \global #2=#3
\else \ifx \@tb\@by \T@stDimen=#3 % accommodate negative #3
#2=\normalcollgt \global\advance #2 by -\T@stDimen
\else \errmessage{#1 is invalid syntax; \string\Shorten#4Page
requires "to" or "by"}\fi
\fi }
\def\@plusno#1#2;{%
\if +#1\T@stCount=\pageno \advance\T@stCount by #2
\else \T@stCount=#1#2 \fi }
\def\ShortenPage #1 #2 #3. {%
\global\Sh@rtPagePendingtrue
\@plusno#1;\global\Sh@rtPageNo=\T@stCount
\@toby{#2}{\Sh@rtPageLgt}{#3}{}}
\def\ShortenThisPage #1 #2. {%
\global\Sh@rtPagetrue
\@toby{#1}{\vsize}{#2}{This}}
% Two cases: 0 = last page was nonstandard; reset \vsize
% 1 = do not reset \vsize: okay or length already reset
\def\D@EndPage{%
\global\advancepageno
\T@stCount=1
\ifThisIsFirstPage \T@stCount=0 \global\ThisIsFirstPagefalse
\resetfirsthead \resetfirstfoot
\global\collgt=\normalcollgt \fi
\ifSh@rtPage \T@stCount=0 \global\Sh@rtPagefalse \fi
\ifSh@rtPagePending
\ifnum\pageno = \Sh@rtPageNo \T@stCount=1
\global\vsize=\Sh@rtPageLgt
\global\Sh@rtPagePendingfalse
\global\Sh@rtPagetrue \fi
\fi
\ifcase \T@stCount \resetpagelgt \fi }
% Add more powerful means of adjusting pages by keeping a list of
% commands to be executed prior to making up the next page. This
% technique will be expanded in the next version of the output
% routine.
% "\DelayedCommand <page number> <column number> <command>\endCommand"
% places the token list <command> at the end of a list of "things to do".
% At the end of every column, the output routine checks this list to
% see whether the head of the list should be "executed" prior to
% building the next column. If so, the execution is performed.
% Right now, items must be placed in the execution list in order,
% and all items for a given column must be combined into a single
% token list.
% Natural applications are double column figures and column size
% adjustments. E.g.
% \DelayedCommand +5 1 \global\advance\vsize by 2\baselineskip\endCommand
% will increase the \vsize of the first column of the page 5 pages from
% "now" by 2 baselines. To pull the \vsize back to normal would require
% another use of \DelayedCommand. Double column figures can be achieved
% with insertions called by \DelayedCommand.
% Right now the technique is messy, but it can be used by those who know
% how it's implemented and know its limitations.
\newtoks\@DelayedCommandList
\def\DelayedCommand #1 #2 #3\endCommand{%
\@plusno#1;%
\edef\@temp{\the\@DelayedCommandList<\number\T@stCount>}%
\global\@DelayedCommandList=\expandafter{\@temp<#2>#3\endCommand}%
}
\def\@FindNextDCPoint <#1><#2>#3\endList{%
\def\DCpage{#1}\def\DCcolumn{#2}}
\def\FindNextDCPoint{%
\edef\@temp{\the\@DelayedCommandList}%
\ifx\@temp\empty \def\DCpage{\@M}\def\DCcolumn{0}%
\else
\edef\@form{%
\noexpand\@FindNextDCPoint\the\@DelayedCommandList\noexpand\endList}%
\@form
\fi}
\def\@ExecuteNextDC <#1><#2>#3\endCommand#4\endList{%
\global\@DelayedCommandList={#4}%
#3}
\def\ExecuteNextDC{%
\FindNextDCPoint
\ifnum \pageno=\DCpage \ifnum\xcol=\DCcolumn
\edef\@form{%
\noexpand\@ExecuteNextDC\the\@DelayedCommandList\noexpand\endList}%
\@form
\fi \fi}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** general mechanism for tags *****
%
% Upon sensing an opening tag (call it `\foo' here), the following process
% is set in motion:
% 1. \begingroup (so definitions and settings are localized);
% 2. the default situation for \foo is set up;
% 3. if appropriate, an \everyfoo list is read (this allows one
% to override the TUGboat.sty factory defaults);
% 4. optional commands are read. This involves looking ahead for
% a `[' and `normalizing' the optional environment so that
% backslashes and braces are interpreted as their standard selves.
% After the options are read, the `\',`{', and `}' are restored
% to their status appropriate to \foo;
% 5. the \@beginfoo macro is executed. This
% may involve branching dependent upon flags set by options. It may
% also be a place where spaces and carriage-returns are activated.
% 6. the `argument' to \foo is read and stored or processed on
% the fly (the method employed is generally fixed for each tag).
% The argument may be delimited by *...* (called the `short-form'
% here), or up to ...\endfoo (called the `long-form').
% 7. a cleanup macro is executed which also ends the current group.
% This may do all the work if an argument has been read and stored.
% Checking ahead.
% Often we check ahead to determine the next course of action.
% \@checknexttoken is used to check for optional commands, to check for the
% short-form argument-delimiter, and to ignore characters in certain
% situations. The macro is just a check; applications must do whatever
% is appropriate with the ensuing token.
% \@checknexttoken checks the next token against argument #1. If the
% two are the same, #2 is executed, otherwise #3. The comparison is
% done with \ifx. Since we check ahead with \futurelet, the first
% argument is stored with \let as well. To include the case
% where #1 may be a space, we have to go through a small contortion
% to \let\@basetoken= that space.
% At times, the \@nexttoken will be \outer and this will prevent its
% being incorporated in the definition of \@next below. For this reason,
% we store `\ifx\@basetoken\@nexttoken' away in a definition at a time
% when \@nexttoken is undefined and won't cause a problem.
\def\if@baseis@next{\ifx\@basetoken\@nexttoken}
\long\def\@checknexttoken #1#2#3{%
\futurelet\@basetoken\iffalse#1\fi
\long\def\@next{%
% \ifx \@basetoken\@nexttoken
\if@baseis@next
\long\def\@@next{#2}%
\else\long\def\@@next{#3}\fi
\@@next}%
\futurelet\@nexttoken\@next}
% Eliminating characters from input.
% The following macros check ahead to see whether the next token is a
% token to be parsed from the input stream. \@ignoreall keeps
% checking to eliminate all such characters, whereas \@ignoreone drops
% at most one. Argument #2 is executed after characters are eliminated.
% The token is removed by defining a control sequence whose
% contextual form includes the token.
% execute #2 after ignoring (possibly) one occurrence of #1
\long\def\@ignoreone#1#2{%
\def\@ignoreform#1{#2}%
\@checknexttoken{#1}{\@ignoreform}{#2}%
}
% execute #2 after ignoring all occurrences of #1
\long\def\@ignoreall#1#2{%
\def\@ignoreform#1{\@ignoretest}%
\def\@ignoretest{\@checknexttoken{#1}{\@ignoreform}{#2}}%
\@ignoretest
}
% Particularly useful ignorances.
% execute #1 after ignoring spaces
\def\DeleteOptionalSpaces#1{%
\@ignoreall{ }{#1}%
}
% execute #1 after ignoring spaces and \pars
\def\DeleteOptionalSpacesandPars#1{%
\@ignoreall{ }{\@ignoreall{\par}{#1}}%
}
% Checking and reading options.
% To check for the next optional argument, the macros must look
% ahead to the next character. If the next character is a `[',
% the option-reading mechanism is invoked. This check may be suppressed if
% the user has executed the \lastoption option. If \@lastoption is
% "true" or if the [ is NOT next, the macro goes on to reading any
% arguments and executing appropriately.
\def\@checkoptions{%
\if@lastoption
\def\@next{\@executetoend}%
\else
\def\@next{\@checknexttoken {[}{\@readoptions}{\@executetoend}}%
\fi
\@next
}
% Default "options" on start-up. Unless over-ridden, the situation
% will be:
% 1. there may be another option to check (i.e. \@lastoptionfalse);
% 2. it will be necessary to read the input file to determine the
% method of marking arguments (i.e. \@longformfalse);
% 3. arguments will be handled on the fly (i.e. \@savingargumentfalse);
% 4. the long-form ending delimiter will be \end... (where ... is
% the tag with which we're currently operating.
\newif\if@lastoption \@lastoptionfalse
\def\lastoption{\@lastoptiontrue}
\newif\if@longform \@longformfalse
\def\longform{\@longformtrue}
\newif\if@savingargument \@savingargumentfalse
\newtoks\enddelim
\def\@defaultoptions{%
\@lastoptionfalse
\@longformfalse
\@savingargumentfalse
\enddelim=\expandafter{\csname end\CurrentTag\endcsname}%
\let\@long\empty
}
% To read an optional command, \catcodes of \ { } are restored to their plain
% values, and the [...] form is parsed out by \@@readoptions. The argument
% to \@@readoptions is then executed, the 3 specials are restored and
% the we check again for [ after deleting spaces. One might, alternatively,
% parse out the initial `[' and activate the `]' to end options, but
% this would make it awkward to place options within other macros (since
% the `]' would have to be \catcoded properly for the definition).
\def\@readoptions{%
\savecat\\\makeescape\\%
\savecat\{\makebgroup\{%
\savecat\}\makeegroup\}%
\@@readoptions}
\def\@@readoptions[#1]{%
#1%
\restorecat\\\restorecat\{\restorecat\}%
\DeleteOptionalSpaces{\@checkoptions}%
}
% Short Form Tagging.
% We specify a character (*) to be used as a begin/end delimiter
% for the argument to most tags. This code could be copied and
% altered a bit to use another character.
% The character will be encountered as either type `other' or as
% an `active' character.
\newtoks\@otherSFD
\@otherSFD={*}
\let\@SFD=* % used in \@checknexttoken
\newtoks\@activeSFD
{\makeactive\*
\global\@activeSFD={*}%
}
\let\@plainast=\ast
\def\ast{\ifmmode\@plainast\else *\fi}
% Reading to the end-tag.
% Macros may just do their business after options have been
% read. In this case, there is no end-tag to worry about.
% Otherwise, the macros either read to the "long-form" of end-tag
% (e.g. \endtitle or \endauthor) or to the short-form (assumed to
% be * here). Unless an option has specified
% that the long-form is to be used, the macros look ahead to
% see whether the short-form delimiter occurs next. If so,
% it is assumed that the short-form is being used. In any case,
% the appropriate \@begin... macro is executed before the argument is
% handled.
\newcount\@numarguments \@numarguments=1
\def\@executetoend{%
\ifnum\@numarguments>0
\if@longform \def\@afterbegintag{\@longparse}%
\else
\def\@afterbegintag{\@checknexttoken
{\@SFD}{\@shortparse}{\@longparse}}%
\fi
\else
\def\@afterbegintag{}%
\fi
\csname @begin\CurrentTag\endcsname
\@afterbegintag
}
% If the short-form is being used and an argument is to be saved,
% we must define a "form" which TeX may follow to pull out the
% tag's argument. The argument is stored away in the token register
% \@argument, and the appropriate end-operation is performed.
% Otherwise (the `argument' is processed on-the-fly), we parse out
% the initial short-form delimiter and activate the ending one.
\newtoks\@argument
\def\@shortparse{%
\if@savingargument
\edef\@form{%
\def\noexpand\@@shortparse\the\@otherSFD####1\the\@otherSFD}%
\@long\@form{\@argument{##1}\csname end\CurrentTag\endcsname}%
\else
\expandafter\makeactive\csname\the\@otherSFD\endcsname
\expandafter\def\the\@activeSFD
{\csname end\CurrentTag\endcsname
\expandafter\makeother\csname\the\@otherSFD\endcsname}%
\def\@@shortparse{%
\expandafter\@ignoreone\expandafter{\the\@otherSFD}%
{}%
}%
\fi
\@@shortparse}
% On the other hand, if the long form is used, TeX must parse to
% the long-form ending tag. Ordinarily we know the ending-tag
% because it is just the \end... which corresponds to the tag
% which initiated the process. We do allow for the possibility,
% however, that we may want to switch this for some reason. E.g.
% the different \verbatim styles allow for \verbatim...\endverbatim
% and ||...||. The easiest way to implement the || style is
% to have the first || call \verbatim and have \verbatim know
% to look for || as the end-tag instead of \endverbatim. This may
% be accomplished by allowing for the possibility of different
% end-tags as below.
\def\@longparse{%
\if@savingargument
\edef\@form{\def\noexpand\@@longparse####1\the\enddelim}%
\@long\@form{\@argument{##1}\csname end\CurrentTag\endcsname}%
\else \def\@@longparse{}\fi
\@@longparse
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Macros generally available to tags.
\def\longargument{\def\@long{\long}}
\def\@authorstyle{\@@@a}
\def\@inlinestyle{\@@@i}
\def\@displaystyle{\@@@d}
\def\@altinlinestyle{}
\def\@altdisplaystyle{}
\newif\if@removeprewhite \@removeprewhitefalse
\newif\if@removepostwhite \@removepostwhitefalse
\def\removeprewhite{\@removeprewhitetrue}
\def\removepostwhite{\@removepostwhitetrue}
% Allow for line numbers on a listing as well as rules above and below.
\newif\if@ruled \@ruledfalse
\newif\if@numbered \@numberedfalse
\newcount\linenumber
\newcount\globallinenumber \globallinenumber = 0
\newif\if@continuingnumbers \@continuingnumbersfalse
\def\continuenumbers{\numbered\@continuingnumberstrue}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** title, section title, authors, addresses *****
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% title
\def\title{%
\begingroup
\def\CurrentTag{title}%
\@defaultoptions
\@savingargumenttrue
\@checkoptions}
\def\endtitle{%
\global\toks@=\expandafter{\the\@argument}%
\endgroup
\edef\thetitle{\ignorespaces\the\toks@\unskip}%
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% section titles
% Material mostly in tugboat.com now
\setbox\T@stBox=\hbox{\sectitlefont O}
\newdimen\stfontheight \stfontheight=\ht\T@stBox
\def\sectitle{%
\begingroup
\def\CurrentTag{sectitle}%
\@defaultoptions
\@savingargumenttrue
\global\SecTitletrue
\@checkoptions}
\def\endsectitle{%
\@sectitle{\the\@argument}%
\endgroup
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% authors
\newcount\authornumber
\def\author{%
\begingroup
\def\CurrentTag{author}%
\global\advance\authornumber by 1
\@defaultoptions
\@savingargumenttrue
\@checkoptions}
\def\endauthor{%
\global\toks@=\expandafter{\the\@argument}%
\endgroup
\expandafter\edef\csname theauthor\number\authornumber\endcsname
{\ignorespaces\the\toks@\unskip}%
\expandafter\let\csname theaddress\number\authornumber\endcsname\relax
\expandafter\let\csname thenetaddress\number\authornumber\endcsname\relax
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% addresses
\def\address{%
\begingroup
\def\CurrentTag{address}%
\@defaultoptions
\@savingargumenttrue
\let\@addressstyle=\@authorstyle
\def\inline{\let\@addressstyle=\@inlinestyle}%
\def\display{\let\@addressstyle=\@displaystyle}%
\@checkoptions}
\def\endaddress{%
\ifx\@addressstyle\@inlinestyle
\def\\{, }\the\@argument
\endgroup
\def\@next{}%
\else\ifx\@addressstyle\@displaystyle
\endgraf\raggedright
\everypar={\hangindent 1.5\parindent}%
\def\\{\endgraf}%
\def\|{\unskip\hfil\break}%
\vskip\abovedisplayskip
\the\@argument\endgraf
\vskip\belowdisplayskip
\@asifbelowdisplay
\endgroup
\def\@next{\ignorespaces}%
\else
\global\toks@=\expandafter{\the\@argument}%
\endgroup
\expandafter\edef\csname theaddress\number\authornumber\endcsname
{\ignorespaces\the\toks@\unskip}%
\def\@next{}%
\fi \fi
\@next
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% network addresses
\def\netaddress{%
\begingroup
\def\CurrentTag{netaddress}%
\@defaultoptions
\@savingargumenttrue
\let\@network\relax
\def\network##1{\def\@network{##1: }}%
\@SpecialsGetOther
\makeescape\\%
\netaddrat
\netaddrpercent
\@checkoptions}
{\makeactive\@
\gdef\netaddrat{\makeactive\@\def@{\char"40\discretionary{}{}{}}}
\makeactive\%
\gdef\netaddrpercent{\makeactive\%\def%{\char"25\discretionary{}{}{}}}
}
% We want the definition of \thenetaddress... to land at the right
% nesting level, so we have to first pull it to the top, then
% drop back to where we are.
\def\endnetaddress{%
\global\toks@=\expandafter{\the\@argument}%
\ifx\@network\relax
\gdef\@@network{}%
\else
\xdef\@@network{\@network}%
\fi
\endgroup
\expandafter\edef\csname thenetaddress\number\authornumber\endcsname
{{\noexpand\rm\@@network}%
{\noexpand\netaddrat\noexpand\netaddrpercent\noexpand\net
\ignorespaces\the\toks@\unskip}}%
}
\def\net{\tt}
% Overrides to default author and signature formats
\def\authorlist#1{\def\@authorlist{#1}}
% Except for the first article in a section, beginnings of articles
% are announced by a horizontal rule the width of the column.
% In the case that this rule happens to fall at the top of a column,
% we have to make sure that it appears at the VERY top of the column
% and not just on the first baseline. To accomplish this, we insert
% an empty rule first and then jump back over it to place the rule that
% readers will see.
\def\article{%
\@allowspanningfigsfalse
\ifSecTitle \global\SecTitlefalse
\else \vskip\AboveTitleSkip
\kern\topskip
\nullhrule
\kern-\topskip
\kern-\strulethickness
\hrule height\strulethickness depth\z@
\nobreak
\kern\medskipamount
\fi
\ifx\thetitle\relax
\else
\nobreak
{\parskip\z@\interlinepenalty\@M
\noindent\def\\{\unskip\break}\raggedstretch=.3\colwd\raggedright\bf
\ignorespaces\thetitle\unskip\endgraf}%
\fi
\ifnum\authornumber>0
\nobreak
\vskip4pt
{\parskip\z@\interlinepenalty\@M
\def\\{\unskip\hfil\break}\hangindent\parindent\raggedright
\@authorlist\endgraf}
\fi
\nobreak
\vskip \BelowTitleSkip
\vskip -\parskip
\tenpoint
\DeleteOptionalSpacesandPars{\noindent\ignorespaces}%
}
\def\endarticle{\vfil\end} % redefined in drivers
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** heads *****
%
% Heads are set by first saving the text of the head in \@argument
% and then operating appropriately depending upon the \headlevel.
% Selection among the different heads is made by an \ifcase.
% To remove extra \par tokens between heads and ensuing text in the
% input file, we call \DeleteOptionalSpacesandPars. To do this outside
% the `head' group and just before TeX returns to the normal input stream
% following a call to \head, we must define (globally) a control sequence
% (\@next) and call it at the very end.
\newcount\headlevel \headlevel=1
\def\head{%
\begingroup
\def\CurrentTag{head}%
\@allowindentfalse
\@defaultoptions
\@savingargumenttrue
\def\\{\break}%
\@checkoptions}
\def\endhead{%
\endgraf
\ifcase\headlevel\or\@domainhead\or\@dosubhead\or\@dosubsubhead\fi
\endgroup
\@next
}
\def\@domainhead{%
\if@removeprewhite\else\vskip\baselineskip\fi
\noindent{\raggedright\bf\ignorespaces\the\@argument\unskip\endgraf}%
\if@removepostwhite % usually we want the white space
\else\kern0.5\baselineskip\fi
\nobreak
\gdef\@next{%
\if@allowindent\def\@next{}% usually we don't want to indent here
\else\def\@next{\DeleteOptionalSpacesandPars{\noindent\ignorespaces}}\fi
\@next
}%
}
\def\@dosubhead{%
\if@removeprewhite\else\medskip\fi
\noindent{\frenchspacing\bf\ignorespaces\the\@argument
\unskip\if@headpunctuation.\fi}%
\hskip 0.5em plus \fontdimen3\the\font
\gdef\@next{\DeleteOptionalSpacesandPars{}}%
}
\def\@dosubsubhead{%
{\frenchspacing\bf\ignorespaces\the\@argument\unskip}%
\hskip 0.5em plus \fontdimen3\the\font
\gdef\@next{\DeleteOptionalSpacesandPars{}}%
}
\def\subhead{\head[\headlevel=2]}
\def\subsubhead{\head[\headlevel=3]}
\newif\if@headpunctuation \@headpunctuationtrue
\def\nopunctuation{\@headpunctuationfalse}
\newif\if@allowindent
\def\allowindent{\global\@allowindenttrue}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** text and subtext *****
%
% The code here exists primarily to implement \subtext. The treatment
% is similar to that for \head in that an \ifcase statement is called
% to choose between the various text levels. Here, however, we handle
% the `text' on the fly instead of saving it as an argument.
\newcount\textlevel \textlevel=1
\def\text{%
\begingroup
\def\CurrentTag{text}%
\@defaultoptions
\@savingargumentfalse
\@checkoptions}
\def\@begintext{%
\endgraf
\ifcase\textlevel\or\or\@setupsubtext\fi
}
\def\@setupsubtext{%
\vskip\abovedisplayskip
\advance\leftskip by 0.5\parindent
\advance\rightskip by 0.5\parindent
\ninepoint\rm
}
\def\endtext{%
\gdef\@next{}%
\ifcase\textlevel\or\or\@dosubtext\fi
\endgroup
\@next
}
\def\@dosubtext{%
\endgraf
\vskip\belowdisplayskip
\gdef\@next{\@asifbelowdisplay}%
}
\def\subtext{\text[\textlevel=2]}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** lists *****
%
\newcount\listlevel \listlevel=1
\newif\if@itemized
\newcount\itemnumber
\newtoks\@itemtag
\newcount\@cols % number of columns in list
\newdimen\colsepwidth
\newdimen\@listindent
\newdimen\@listhangindent
\newif\if@firstitem % when first item is handled differently
\newtoks\everylist
\def\list{%
\begingroup
\def\CurrentTag{list}%
\let\@liststyle=\@displaystyle
\def\inline{\let\@liststyle=\@inlinestyle}%
\def\display{\let\@liststyle=\@displaystyle}%
\def\displaystyle##1{\def\@altdisplaystyle{##1}}%
\def\inlinestyle##1{\def\@altinlinestyle{##1}}%
\def\item{%
\begingroup
\def\CurrentTag{item}%
\@numarguments=0
\@checkoptions}%
\@itemtag={$\bullet$}%
\def\tag##1{\@itemtag{##1}}%
\def\tagform##1{\llap{##1\strutt\enspace}}%
\@itemizedtrue
\def\unitemized{\@itemizedfalse}%
\itemnumber=0
\def\numbered{\@itemtag={\number\itemnumber.}}%
\def\romannumeraled{\@itemtag={\romannumeral\itemnumber.}}%
\def\Romannumeraled{\@itemtag=
{\uppercase\expandafter{\romannumeral\itemnumber.}}}%
\def\lettered{\itemnumber="60 \@itemtag={\char\itemnumber.}}%
\def\Lettered{\itemnumber="40 \@itemtag={\char\itemnumber.}}%
\def\ruled{\@ruledtrue}%
\@ruledfalse
\@cols=1
\def\cols{\@cols}%
\@firstitemtrue
\def\@itemseparator{, }%
\def\itemseparator##1{\def\@itemseparator{##1}}%
\@defaultoptions
\@savingargumentfalse
\the\everylist
\@checkoptions}
\def\@beginlist{%
\ifx\@liststyle\@displaystyle
\endgraf
\ifnum\listlevel=1
\if@ruled \if@removeprewhite\else\medskip\fi \hrule\kern5pt \nobreak
\else \if@removeprewhite\else\vskip\abovedisplayskip \fi\fi
\fi
\advance\leftskip\parindent
\@listindent=\parindent
\@listhangindent=\@listindent
\parindent\@listindent
\lineskip\z@
\if@itemized
\else
\parskip\z@skip
\parindent\z@
\raggedright
\everypar={\advance\itemnumber\@ne
\tagform{\the\@itemtag}}%
\makeCtrlMendgraf
\fi
\def\colsep{%
\global\count@\itemnumber
\egroup\kern\colsepwidth
\vtop\bgroup
\@altdisplaystyle
\itemnumber=\count@\ignoreendline}%
\ifnum\@cols>1
\dimen@\colsepwidth
\multiply\dimen@\@cols
\advance\dimen@-\colsepwidth
\advance\hsize-\dimen@
\divide\hsize by\@cols
\hbox\bgroup\vtop\bgroup
\fi
\@altdisplaystyle
\else
\def\tagform##1{##1\strutt\ }%
\if@itemized
\else
\makeCtrlMseparator
\advance\itemnumber by \@ne
\tagform{\the\@itemtag}%
\fi
\def\colsep{}%
\@altinlinestyle
\fi
}
\def\endlist{%
\ifx\@liststyle\@displaystyle
\if@itemized\endgraf\fi
\ifnum\@cols>1
\egroup % vtop
\egroup % hbox
\fi
\ifnum\listlevel=1
\if@ruled \kern5pt\hrule\nobreak\vskip2\medskipamount
\else %\nobreak
\if@removepostwhite\else\vskip\belowdisplayskip\fi
\fi
\gdef\@next{\@asifbelowdisplay}%
\fi
\else \gdef\@next{}%
\fi
\endgroup % list
\@next
}
\def\sublist{\list[\listlevel=2]}
\newtoks\everyitem \everyitem{}
\def\@beginitem{%
\ifx\@liststyle\@displaystyle
\endgraf
\if@firstitem\@firstitemfalse\else\vskip\smallskipamount\fi
\advance\itemnumber by \@ne
\noindent\leavevmode
\the\everyitem
\tagform{\the\@itemtag}%
\else
\def\item{\if@firstitem\@firstitemfalse\else\unskip\@itemseparator\fi
\advance\itemnumber by \@ne\the\@itemtag\enspace}%
\fi
\global\count@\itemnumber
\global\dimen@\hangindent
\endgroup
\itemnumber\count@
\hangindent\dimen@
}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** verbatim *****
%
% Operation here is very similar to that for the other tags.
% The opening tag sets up the situation and looks for optional
% commands and the short-form delimiters. Since initial setup
% involves changing the special characters to characters of
% type other, some juggling must be done when optional commands
% are read. In addition, to allow for implementation of the
% |...| style using the more verbose \verbatim...\endverbatim,
% we parameterize the ending-delimiter.
% sets default to display style
\def\verbatim{\@verbatim[\display]}
\def\@verbatim{%
\begingroup
\setupverbatim
\@checkoptions
}
\def\setupverbatim{%
\def\CurrentTag{verbatim}%
\@defaultoptions
\def\inline{\let\@verbstyle\@inlinestyle}%
\def\display{\let\@verbstyle\@displaystyle}%
\def\displaystyle##1{\def\@altdisplaystyle{##1}}%
\def\inlinestyle##1{\def\@altinlinestyle{##1}}%
\def\numbered{\@numberedtrue}%
\def\ruled{\@ruledtrue}%
\def\smallcode{\ninepoint\tt\baselineskip=10pt}%
\let\@verbinputvar\relax
\let\@verbinputfile\relax
\@SpecialsGetOther
\enddelim=\expandafter{\endverbdelimiter}%
\normalspaces\frenchspacing
\obeylines
\@savingargumenttrue
\the\everyverbatim
}
\def\@SpecialsGetOther{%
\catcode`\\=\other
\catcode`\{=\other \catcode`\}=\other \catcode`\$=\other
\catcode`\&=\other \catcode`\#=\other \catcode`\%=\other
\catcode`\~=\other \catcode`\_=\other \catcode`\^=\other
\the\@AdditionsToSpecialsGetOther}
% The \@Additions... register above should be used whenever another
% character is declared to be special for some purpose. E.g.,
% we will use the | for the short-form |...| verbatim notation.
% Since the | is generally active for this purpose, it's category
% won't get changed to \other for use in \verbatim...\endverbatim
% unless we add it via this mechanism.
\newtoks\@AdditionsToSpecialsGetOther
\def\AddToSpecialsGetOther#1{%
\@AdditionsToSpecialsGetOther=
\expandafter{\the\@AdditionsToSpecialsGetOther#1}}
% Altering the verbatim setup.
% Users can alter the setup to their purpose by
% putting tokens in the register \everyverbatim.
\newtoks\everyverbatim
% Ordinarily the end-tag would be the single token `\endverbatim'.
% The following allows us to `see' the tag when `\' is of type `other'.
{\catcode`\|=0 \catcode`\\=\other
|gdef|endverbdelimiter{\endverbatim}}
% Input from an external variable or file
\def\inputfromvar#1{\def\@verbinputvar{#1}}%
\def\inputfromfile#1{\def\@verbinputfile{#1}}%
\let\@verbinputvar\relax
\let\@verbinputfile\relax
% Outputs
\newif\if@outputtotype \@outputtotypetrue
\def\notype{\@outputtotypefalse}
\def\outputtovar#1{\def\@verboutputvar{#1}}
\def\outputtofile#1{\def\@verboutputfile{#1}}
\let\@verboutputvar\relax
\let\@verboutputfile\relax
\newwrite\verboutfile
\def\@beginverbatim{\obeyspaces}%\obeylines}
\def\endverbatim{%
\ifx\@verboutputvar\relax\else % output to `variable'
\expandafter\xdef\csname\@verboutputvar\endcsname{\the\@argument}%
\fi
\ifx\@verboutputfile\relax\else % output to file
\immediate\openout\verboutfile=\@verboutputfile
\makeCtrlMnewlinechar
\iffalse{\fi\expandafter\@setupverbwrite\the\@argument}% use \@setupwrite to
\immediate\closeout\verboutfile % get rid of initial ^^M
\fi
\gdef\@next{}% % in case following clause is false
\if@outputtotype % output typeset on page
\tt
\ifx\@verbstyle\@inlinestyle
\@beforeverbinline
\@altinlinestyle
\else
\@beforeverbdisplay
\@altdisplaystyle
\fi
\ifx\@verbinputvar\relax\else % input from `variable'
\csname\@verbinputvar\endcsname
\fi
\ifx\@verbinputfile\relax\else % input from file
\fileinput{\@verbinputfile}%
\@endverbatim
\fi
\expandafter\@ignoreCtrlMverbendline\the\@argument\@endverbatim
\ifx\@verbstyle\@inlinestyle
\@afterverbinline
\else
\@afterverbdisplay\gdef\@next{\@asifbelowdisplay}%
\fi
\fi
\endgroup
\@next
}
\def\@beforeverbinline{%
\makeCtrlMverbspace
\let\@endverbatim=\empty
}
\def\@beforeverbdisplay{%
\def\@endverbatim{\verbendline}%
\if@ruled \medskip \hrule\kern5pt \nobreak
\else \vskip\abovedisplayskip
\fi
\makespaceverbspace
\makeCtrlMverbendline
\parskip=\z@skip
\if@numbered \parindent=\z@
\if@continuingnumbers
\else \global\globallinenumber = \z@ \fi
\linenumber=\z@ \fi
\everypar={\global\advance\globallinenumber by\@ne
\advance\linenumber by\@ne
\ifnum\linenumber<3 \vadjust{\nobreak}\fi
\if@numbered \leavevmode
\hbox to\normalparindent{\hss\sevenrm\the\globallinenumber.\ }%
\fi}%
\frenchspacing\rightskip=-\ttrightskip \hyphenpenalty\@M
}
% \ttrightskip is the permissible overhang beyond right margin;
% in MANMAC, this is 5pc, which is fine for the TeXbook, but too much here.
\newdimen\ttrightskip \ttrightskip=1pc
\def\@afterverbinline{}
\def\@afterverbdisplay{%
\if@ruled \kern5pt\hrule\fi
\ifnum\linenumber<3 \penalty\z@ \fi
\if@removepostwhite\else
\if@ruled \vskip2\medskipamount \else \vskip\belowdisplayskip\fi
\fi
}
\def\@asifbelowdisplay{%
\toks@=\expandafter{\the\everypar}%
\noindent
\everypar=\expandafter{\the\toks@}%
\ignorespaces}
% Definitions of spaces and ^^M
% \@ignoreCtrlMverbendline is used to lop off an initial ^^M in
% verbatim text and to remove an \@endverbatim (the latter in case the
% verbatim text is actually empty)
\def\@ignoreendverbatim{\@ignoreone{\@endverbatim}{}}
\def\verbendline{\leavevmode\null\endgraf}
\def\makeCtrlMactive{\catcode`\^^M=\active}
{\makeCtrlMactive
\gdef\makeCtrlMverbendline{\makeCtrlMactive%
\def^^M{\@ignoreone{\@endverbatim}{\verbendline}}}%
\makeCtrlMverbendline%
\gdef\@ignoreCtrlMverbendline{\@ignoreone{
}{\@ignoreendverbatim}}%
\gdef\@setupverbwrite{\@ignoreone{
}{\immediate\write\verboutfile\bgroup}}%
\gdef\makeCtrlMverbspace{\makeCtrlMactive\def^^M{\verbatimspace}}%
\gdef\makeCtrlMnewlinechar{\newlinechar=`\^^M}%
\gdef\makeCtrlMendgraf{\makeCtrlMactive\def^^M{\strutt\endgraf}}%
\gdef\makeCtrlMseparator{\makeCtrlMactive%
\def^^M{%
\@checknexttoken {\endlist}{}{%
\@itemseparator\advance\itemnumber by \@ne \tagform{\the\@itemtag}%
\ignorespaces}}}%
}
% to read a variable or file name properly, we must interpret
% spaces and ^^M as nothing or as spaces
{\makeCtrlMactive\obeyspaces%
\gdef\makeCtrlMempty{\def^^M{}}%
\gdef\makespaceempty{\def {}}%
}
{\makeCtrlMactive\obeyspaces%
\gdef\makeCtrlMspace{\def^^M{\space}}%
\gdef\makespacespace{\def {\space}}%
}
{\makeCtrlMactive%
\gdef\@ignoreCtrlM#1{\@ignoreone{^^M}{#1}}%
\gdef\ignoreendline{\@ignoreCtrlM{}}%
}
% From David Eppstein's ``Trees'' paper (6#1), preserve initial spaces.
\def\verbatimspace{\ifvmode\indent\fi\space}
{\obeyspaces\gdef\makespaceverbspace{\def {\verbatimspace}}}
% Options and variants.
\def\verbinline{\verbatim[\inline]}
\def\verbdisplay{\verbatim[\display]}
\def\verbfile#1{\verbatim[\inputfromfile{#1}]}
% Verbatim with the other characters (e.g. |...|).
% Procedures are parameterized so that it is easy to allow
% different characters to perform this function. Any character
% that's chosen could cause problems if it occurs unexpectedly
% in the middle of what is supposed to be verbatim text. We call
% the current special character for this purpose the "verbchar"
% and store it in active form in the token register \@verbchar.
\newtoks\@verbchar
% On hitting a "verbchar" in the middle of text, TeX must look ahead
% to see whether the verbchar occurs again. Since this
% look-ahead fixes the category of the token examined, we must change
% the categories of all characters appropriately before looking
% (and we read \everyverbatim in case it contains a category change).
% We must also "gobble" the second verbchar if we hit one.
% Depending upon whether 1 or 2 verbchars are found, we call
% \verbatim with the appropriate style command. We also use an
% optional command to change the delimiter which ends this \verbatim
% block. We naturally localize the changes to category codes made on
% startup. It's easier to end this group here at the beginning and to
% restart everything in a standard \verbatim than it is to add an extra
% \endgroup after the verbatim text.
\def\@firstverbchar{%
\begingroup
\setupverbatim
% \@SpecialsGetOther
\makeverbcharactive
\expandafter\@checknexttoken\expandafter{\the\@verbchar}%
{\expandafter\@ignoreone\expandafter{\the\@verbchar}%
{\endgroup\verbatim[\longform\maketwoendverb]}}%
{\endgroup\verbatim[\inline\longform\makeoneendverb]}%
}
\def\setupverbchar{%
\def\makeoneendverb{\catcode\expandafter`\csname\expandafter
\string\the\@verbchar\endcsname=
\active\edef\endverbdelimiter{\the\@verbchar}%
\enddelim=\expandafter{\endverbdelimiter}}%
\def\maketwoendverb{\catcode\expandafter`\csname\expandafter
\string\the\@verbchar\endcsname=
\active\edef\endverbdelimiter{\the\@verbchar\the\@verbchar}%
\enddelim=\expandafter{\endverbdelimiter}}%
\expandafter\let\the\@verbchar\@firstverbchar
\makeverbcharactive
\AddToSpecialsGetOther{%
\catcode\expandafter`\csname
\expandafter\string\the\@verbchar\endcsname=\other}%
}
\def\makeverbcharactive{%
\catcode\expandafter`\csname
\expandafter\string\the\@verbchar\endcsname=\active}
{\makeother\| \gdef\VertChar{|}}
{\makeactive\|
\gdef\makevertverbchar{%
\@verbchar={|}%
\setupverbchar
}
}
{\makeother\! \gdef\WowChar{!}}
{\makeactive\!
\gdef\makewowverbchar{%
\@verbchar={!}%
\setupverbchar
}
}
\def\MTH{$}
\def\sb{_}
\def\sp{^}
\def\SP{{\tt\char"20 }} % "visible" space
\chardef\bs=`\\
\def\vrt{{\tt\char`\|}}
\def\brokenvert{\hbox to 5.24998pt{\hfill
\lower 1.5pt\vbox to 8.5pt{\hrule width .9pt height 3.25pt
\vfill\hrule width .9pt height 3.25pt}\hfill}}
\def\@lt{$<$}
\def\@gt{$>$}
{\makeactive\<
\gdef\enablemetacode{%
\AddToSpecialsGetOther{\catcode`\<=\other}%
\makeactive\<%
\def<##1>{$\langle${\it\makeCtrlMspace\makespacespace##1\/}$\rangle$}%
}
}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** figures *****
%
\newif\if@@mid \@@midfalse
\newif\if@@bot \@@botfalse
\def\@caption{}
\newif\if@fixed \@fixedfalse
% items for top and bottom ``banners'' on first page
\def\resetfirsthead{\global\toplgt=\z@ \gdef\firsthead{}}
\resetfirsthead
\newbox\firsth@@d \newbox\firsth@ad
\def\resetfirstfoot{\global\botlgt=\z@ \gdef\firstfoot{}}
\resetfirstfoot
\newbox\firstf@@t \newbox\firstf@ot
\newif\if@allowspanningfigs
\newcount\@figurepage
\newcount\@figurescol
\newcount\@figureecol
\def\figure{%
\begingroup
\def\CurrentTag{figure}%
\@defaultoptions
\@savingargumentfalse
\def\top{}%
\def\bot{\@@bottrue}%
\def\mid{\@@midtrue}%
\def\caption##1{\def\@caption{\ulap{\bigskip##1\smallskip}}}%
\def\fixed{\@fixedtrue}%
\def\scol{\@figurescol}%
\def\ecol{\@figureecol}%
\@figurepage=\pageno
\@figurescol=1
\@figureecol=\numcols
\def\page{%
\@ignoreall{\space}%
{\@ignoreone{=}%
{\@ignoreall{\space}%
{\@checknexttoken{+}{\@ignoreone{+}{\advance\@figurepage by}}%
{\@figurepage=}%
}%
}%
}%
}%
\@checkoptions}
\def\@beginfigure{%
\if@fixed
\global\ThisIsFirstPagetrue
\setbox\T@stBox=\vbox\bgroup \hsize\pagewd
\else
\if@@mid\midinsert\else\if@@bot\botinsert\else\topinsert\fi\fi
\fi
}
\def\endfigure{%
\@caption
\if@fixed
\egroup
\if@allowspanningfigs
\ifnum\@figurepage>\pageno
\immediate\write\sixt@@n{^^J
Setting multiple column figures currently not allowed on pages^^J
other than the first of each article. Check your source file.^^J}%
\else
\if@@bot
\ifdim \botlgt=\z@ \global\botlgt=\ht\T@stBox \resetpagelgt \fi
\global\setbox\firstf@ot=\vbox to \botlgt{\box\T@stBox \vfil}%
\global\setbox\firstf@@t=\vbox to \botlgt{\vfil}%
\gdef\firstfoot{\ifnum \xcol=2 \copy\firstf@ot
\else \copy\firstf@@t \fi }%
\else
\ifdim \toplgt=\z@ \global\toplgt=\ht\T@stBox \resetpagelgt \fi
% assume that \firsth@ad ends with glue, hence no \dp
\global\setbox\firsth@ad=\vbox to \toplgt{\box\T@stBox \vfil}%
\global\setbox\firsth@@d=\vbox to \toplgt{\vfil}%
\gdef\firsthead{\ifnum \xcol=2 \box\firsth@ad
\else \copy\firsth@@d \fi }%
\fi
\fi
\else
\immediate\write\sixt@@n{^^J
Setting multiple column figures currently not allowed after^^J
article has begun.^^J}%
\fi
\else \endinsert
\fi
\endgroup
}
\def\twocolfigure{%
\figure[\fixed]}
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** utilities *****
%
\def\linebreak{\unskip\break} % conflicts with LaTeX definition
% Define a structure that will permit a list (using \obeylines)
% to be made into 2 columns, split by \vsplit, indented the
% normal \parindent
\def\NormalizeBlockHeight{%
\TestCount=1 % \@ne
\TestDimen=\dimen0 \advance\TestDimen by-\topskip
\CutOneLine }
\def\CutOneLine{%
\advance\TestCount by 1 \advance\TestDimen by-\baselineskip
\ifdim\TestDimen < \baselineskip % \@ne
\def\result{%
\TestDimen=\baselineskip
\multiply\TestDimen by \TestCount
\advance\TestDimen by \topskip
\global\dimen0=\TestDimen }%
\else \def\result{\CutOneLine }\fi
\result }
\def\twosplit{%
{\topskip=\baselineskip \splittopskip=\topskip
\setbox0=\copy\TestBox
\dimen0=\ht\TestBox
\NormalizeBlockHeight
\divide\dimen0 by 2
\setbox\LeftHalf=\vsplit\TestBox to \dimen0
\ifdim\ht\TestBox > \ht\LeftHalf
\advance\dimen0 by \baselineskip
\setbox\TestBox=\copy0
\setbox\LeftHalf=\vsplit\TestBox to \dimen0
\fi
\line{\kern\parindent\valign{##\vfil\cr
\unvbox\LeftHalf\cr\noalign{\hfil}\unvbox\TestBox\cr}}%
}%
\global\setbox0=\null}
\newbox\LeftHalf
\newdimen\HalfWd
\HalfWd=\twocolcolwd
\advance\HalfWd by-\normalparindent
\divide\HalfWd by 2
{\obeylines
\gdef\twouplist #1{%
\topskip=\baselineskip \splittopskip=\topskip
\begingroup \parindent=\z@ \obeylines
% next line ends with intentional <cr>
\def\endtwouplist{
\egroup % % end of \vbox
\endgroup % % end of \obeylines group
\twosplit }%
\global\setbox\TestBox=\vbox\bgroup\hsize=\HalfWd %
\indent\vrule height\topskip width \z@ #1}%
}
% Tags for special formatting of editor's notes (See also TUGBOAT.COM)
\def\Editor{\noindent To the Editor:\par}
\def\EdNote #1{%
\if #1[%
\ifvmode \smallskip\noindent \else \unskip\hskip1em \fi
[\thinspace\xEdNote\ignorespaces
\else \ifFirstPar \else \medskip\noindent \fi
\xEdNote #1\fi }
% Draw a box around a whole page, e.g. announcements page;
% format must be \onenarrow or \onemedium, and start on a new page.
\def\bigbox{\hrule \hbox\bgroup \vrule\kern 1pc
\vbox\bgroup \vskip 1pc }
\def\endbox{\endgraf \vskip 1pc \egroup \kern 1pc\vrule \egroup \hrule }
%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% ***** initialization *****
%
\def\initializearticle{%
\let\thetitle=\relax
\authornumber=0
\def\@signature{\@defaultsignature}%
\def\@authorlist{\@defaultauthorlist}%
\@allowspanningfigstrue
}
\makeother\@
% @ is prohibited in AMS-TeX, but should not be in TUGboat
\twocol
\maxcols=2
\OverlaysinTeXtrue
\Trimmarksfalse
\PrelimDrafttrue
\initializearticle
\pageno=1001 % number of title page
\StretchyTenPointSpacing
\StretchyNinePointSpacing
\StretchyEightPointSpacing
\makevertverbchar
\endinput
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% History of changes
Version Date Changes
------- --------- ---------------------------------------------------
1.14c 14 Oct 96 lowered footnoterule by 3pt
1.14b 14 Apr 94 added \interlinepenalty=10000 to avoid page breaks
in very long titles and author lists
1.14a 8 Nov 93 removed extraneous " from header
1.14 19 Feb 93 installed new TUG address and phone number in header
1.13 13 Oct 92 Added \SMC in \ninepoint
1.12 4 Jun 92 Added stretchability to \rightskip in ragged title
1.11 8 Mar 92 Changed name of tugboat.com to tugboat.cmn to avoid
conflict with special meaning of .com with some
operating systems
Within verbatim, added \smallcode (from tugproc)
Added standard headers, prepared for archive installation
1.10 21 Oct 91 Corrected font for \SMC in \tenpoint to \ninerm
(\ninesmc was used, but set to cmcsc10)
Changed \EdNote to detect \ifvmode when tag followed
by [ and to \smallskip and \noindent in that case
rather than performing \hskip1em
1.09 11 Mar 91 Made \ an escape character in network addresses.
Added mechanism for saving \long arguments of
TUGboat macros (see uses of \@long).
1.08 18 Oct 90 Incorporated redefinition of \sl within \bf
Changed an \input within \verbatim to \fileinput.
Added means of turning off punctuation after subheads.
Removed \nobreak after lists
1.07 8 Jun 90 Corrected definition of \newpage
1.06 13 May 90 Added \@setupverbwrite to eliminate initial ^^M
as \verbatim writes to a file.
Made strut on first line of footnote slightly taller
so as to separate footnotes.
Reset \@verbinputfile and \@verbinputvar to \relax
to allow nesting
Removed some \global assignments to \@argument and
2 verbatim flags to allow nesting.
1.05 23 Apr 90 Added "\setupverbatim" to \@firstverbchar so
that category switches are accomodated properly.
1.04 7 Mar 90 Added \colsepwidth to allow for separation between
columns of lists
1.03 1 Mar 90 Modified \@dosubhead and \@dosubsubhead to allow
stretchable space afterward
1.02 25 Feb 90 Added \resetmaxcols to allow for automatic adjustment
of \maxcols; if overlays are done by the driver,
\maxcols needs to be set to an overall job maximum
at the start of the job.
Added setting of \SecTitletrue to definition
of \sectitle.
Added indicator of style file loaded (\tubstyle).
1.01 17 Jan 90 Modified \@executetoend so that \@next would not
be clobbered by \csname @begin\CurrentTag\endcsname;
\@next changed to \@afterbegintag
Added `\the' before \@otherSFD within definition of
\@shortparse
added \@altdisplaystyle to definition of \colsep
|