summaryrefslogtreecommitdiff
path: root/Master/texmf-doc/doc/english/make-tex-work/html/ch13.html
blob: 821c3409e15e083d14515c914eda0959fe61bd3a (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
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta name="generator"
    content="HTML Tidy for Linux/x86 (vers 1st March 2002), see www.w3.org" />
    <meta http-equiv="Content-Type"
    content="text/html; charset=ISO-8859-1" />

    <title>Chapter&#160;13.&#160;Non-commercial
    Environments</title>
    <link rel="stylesheet" href="mtw.css" type="text/css" />
    <meta name="generator"
    content="DocBook XSL Stylesheets V1.53.0" />
    <link rel="home" href="index.html" title="Making TeX Work" />
    <link rel="up" href="pt03.html"
    title="Part&#160;III.&#160;A Tools Overview" />
    <link rel="previous" href="pt03.html"
    title="Part&#160;III.&#160;A Tools Overview" />
    <link rel="next" href="ch14.html"
    title="Chapter&#160;14.&#160;Commercial Environments" />
  </head>

  <body>
    <div class="navheader">
      <table border="0" cellpadding="0" cellspacing="0"
      width="100%" summary="Navigation table">
        <tr>
          <td align="left">&#160;<a title="Making TeX Work"
          href="index.html"><img src="figures/nav-home.png"
          alt="Home" border="0" /></a>&#160;<a
          title="Part&#160;III.&#160;A Tools Overview"
          href="pt03.html"><img src="figures/nav-prev.png"
          alt="Prev" border="0" /></a>&#160;<a
          title="Part&#160;III.&#160;A Tools Overview"
          href="pt03.html"><img src="figures/nav-up.png" alt="Up"
          border="0" /></a>&#160;<a
          title="Chapter&#160;14.&#160;Commercial Environments"
          href="ch14.html"><img src="figures/nav-next.png"
          alt="Next" border="0" /></a></td>

          <td align="right"><i>Making TeX Work</i> Version 1.0.1
          <span class="alpha-version">(<a
          href="co01.html"><em>Alpha</em></a>)</span></td>
        </tr>
      </table>
    </div>

    <div class="chapter">
      <div class="titlepage">
        <div>
          <h2 class="title"><a id="chap.freetex"
          name="chap.freetex"></a>Chapter&#160;13.&#160;Non-commercial
          Environments</h2>
        </div>

        <div>
          <p class="releaseinfo">$Revision: 1.1 $</p>
        </div>

        <div>
          <p class="pubdate">$Date: 2002/08/23 14:31:13 $</p>
        </div>
        <hr class="component-separator" />
      </div>

      <p><a id="id2920434" class="indexterm"
      name="id2920434"></a>This chapter offers an overview of
      several common free and shareware TeX systems. If you notice
      any conflicts between the information in this chapter and the
      documentation that comes with the software, please consider
      the documentation to be more accurate and up-to-date. I've
      attempted to provide hints and practical suggestions, but
      software installation is largely dependent on your system
      configuration and the way you want to use TeX.</p>

      <div class="section">
        <div class="titlepage">
          <div>
            <h2 class="title" style="clear: both"><a id="free.web"
            name="free.web"></a>Web2C</h2>
          </div>
        </div>

        <p><a id="id2920341" class="indexterm"
        name="id2920341"></a><a id="id2920347" class="indexterm"
        name="id2920347"></a> The official sources for all of the
        standard TeX programs are distributed in a format known as
        \web.<sup>[<a id="id2920364" name="id2920364"
        href="#ftn.id2920364">122</a>]</sup> \web is an
        implementation of a programming style known as
        &#8220;literate programming.&#8221; One central tenet of
        literate programming is that source code and documentation
        should be written in parallel. Literate programming
        enforces this tenet by combining the two in a single file.
        \web source files contain a mixture of source code and
        documentation.</p>

        <p>In \web files, the documentation is written in TeX, and
        the source code is written in Pascal. (Other literate
        programming environments use different documentation and
        programming languages.) To print the documentation, a
        special preprocessor called <b>weave</b><a id="id2920395"
        class="indexterm" name="id2920395"></a> transforms the \web
        source into a TeX document that can be formatted and
        printed. Another preprocessor, called <b>tangle</b><a
        id="id2924413" class="indexterm" name="id2924413"></a>,
        transforms the \web source into a Pascal program that can
        be compiled and executed.</p>

        <p>In practice, it is far more likely that you have access
        to a C compiler than to a Pascal compiler. This is where
        <b>Web2C</b> comes in. <b>Web2C</b> is a special-purpose
        Pascal-to-C translator that makes it possible to compile
        and build the TeX sources in most unix environments (and
        probably many other environments as well).</p>

        <p>Karl Berry<a id="id2924450" class="indexterm"
        name="id2924450"></a> maintains the <b>Web2C</b>
        distribution. You can retrieve it from the CTAN archives in
        the directory <tt>systems/unix/web2c</tt>.</p>

        <p>Preparing to build TeX with the <b>Web2C</b>
        distribution is very straightforward. Unpack the archive
        files, read the file named <tt>README</tt>, and follow the
        instructions in the file named <tt>INSTALL</tt>. Many
        people have built TeX using these sources. If you have
        difficulty, readers of the <tt>Info-TeX</tt> mailing list<a
        id="id2924515" class="indexterm" name="id2924515"></a> or
        the <tt>comp.text.tex</tt> newsgroup<a id="id2924539"
        class="indexterm" name="id2924539"></a> will almost
        certainly be able to help.</p>

        <p>In my experience, there are only two parts of the
        installation that are likely to cause any difficulty:
        compiling <tt>tangleboot.c</tt> and building the X Windows
        support in MetaFont.</p>

        <p>Because <b>tangle</b> is written in \web, there is an
        obvious bootstrapping problem (how do you <b>tangle</b>
        <tt>tangle.web</tt> in order to compile <b>tangle</b>?).
        The <b>Web2C</b> distribution includes a small C program
        called <tt>tangleboot.c</tt><a id="id2924617"
        class="indexterm" name="id2924617"></a>, which overcomes
        this hurdle. It's possible that getting
        <tt>tangleboot.c</tt> to compile on your machine may
        require some tinkering. I had this problem on one machine
        with one release of <b>Web2C</b>. Subsequent releases of
        <b>Web2C</b> seem to have corrected this problem (in my
        case, at least).</p>

        <p>Compiling X Window support for MetaFont has regularly
        been a thornier problem. If you are not comfortable
        programming in C, I cannot suggest a simple way to correct
        these difficulties in the general case. (However, asking
        for help in the appropriate newsgroups is very likely to
        produce a solution for any particular problem.)</p>

        <p>The most common errors that I've encountered in building
        the X Windows support for MetaFont are conflicting
        prototypes and type definitions. My solution to these
        problems, inelegant though it may be, has generally been to
        &#8220;correct&#8221; or remove the offending declarations
        from the MetaFont sources. (Note: the X Window support is
        written directly in C, not \web, so it is considerably
        easier to edit.) In my experience, this has always been
        successful, but your mileage may vary.</p>
      </div>

      <div class="section">
        <div class="titlepage">
          <div>
            <h2 class="title" style="clear: both"><a
            id="sec.emtex.testinstall"
            name="sec.emtex.testinstall"></a>emTeX</h2>
          </div>
        </div>

        <p><a id="id2924692" class="indexterm"
        name="id2924692"></a><a id="id2924702" class="indexterm"
        name="id2924702"></a> The emTeX distribution is a very
        complete, free distribution of TeX for MS-DOS and OS/2
        systems. emTeX will run on any 80x86 processor, although
        some of the larger, faster executables require at least a
        386. There is no single right way to install TeX, so what
        follows is only one possible installation. This
        installation uses the default directories and assumes a
        single-user environment. Installing emTeX in a network
        environment is mentioned briefly in &#8220;<span
        class="emphasis"><em><a href="ch13.html#sec.netemtex"
        title="Installing emTeX on a Network">the section called
        &#8220;Installing emTeX on a
        Network&#8221;</a></em></span>,&#8221; later in this
        chapter. Incorporating the more recent, beta test versions
        of emTeX is described in the section called \linebreak</p>

        <p>&#8220;<a href="ch13.html#sec.betaemtex"
        title="Environment variables">the section called
        &#8220;Environment variables&#8221;</a>.&#8221; emTeX is
        available on CTAN in the directory
        <tt>systems/msdos/emtex</tt>.</p>

        <p>On the whole, the installation instructions for emTeX
        are provided in the distribution. Begin by reading the
        English or German versions of the documentation provided.
        Additionally, you should read the DVI driver documentation
        at least once. (It's quite long, and you may not remember
        all of it after a single reading, but at least you'll have
        a feel for what can be done.)</p>

        <p>Table&#160;<a href="ch13.html#tab.emtexfilesum"
        title="Table&#160;13.1.&#160;Summary of the \protect\emTeX Distribution">
        Table&#160;13.1</a> summarizes the files in the
        distribution. The standard emTeX distribution occupies six
        high-density floppy disks. A complete installation requires
        more than 12 megabytes of storage without fonts. You must
        also get a set of fonts (available in font library format
        for emTeX) or set up automatic font generation.</p>

        <div class="table">
          <a id="tab.emtexfilesum" name="tab.emtexfilesum"></a>

          <p class="title"><b>Table&#160;13.1.&#160;Summary of the
          \protect\emTeX Distribution</b></p>

          <table
          summary="Summary of the \protect\emTeX Distribution"
          border="1">
            <colgroup>
              <col align="left" />
              <col align="left" />
              <col align="right" />
              <col align="right" />
            </colgroup>

            <thead>
              <tr>
                <th align="left">&#160;</th>

                <th align="left">&#160;</th>

                <th align="right">&#160;</th>

                <th align="right">\multicolumn{1}{l}{\bf
                Expanded}</th>
              </tr>
            </thead>

            <tbody>
              <tr>
                <td align="left"><span>\bf File</span></td>

                <td align="left">\bf Abbreviated Contents</td>

                <td align="right">\multicolumn{1}{l}{\bf Size}</td>

                <td align="right">\multicolumn{1}{|l}{\bf
                Size}</td>
              </tr>

              <tr>
                <td align="left">\it *.eng</td>

                <td align="left">English documentation</td>

                <td align="right">125Kb</td>

                <td align="right">125Kb</td>
              </tr>

              <tr>
                <td align="left">\it{}*.ger</td>

                <td align="left">German documentation</td>

                <td align="right">140Kb</td>

                <td align="right">140Kb</td>
              </tr>

              <tr>
                <td align="left">\it{}*.exe</td>

                <td align="left">Delete, remove, pkunzip</td>

                <td align="right">227Kb</td>

                <td align="right">227Kb</td>
              </tr>

              <tr>
                <td align="left">\it tex1.zip</td>

                <td align="left">TeX executables, <tt>TFM</tt>s,
                inputs</td>

                <td align="right">368Kb</td>

                <td align="right">645Kb</td>
              </tr>

              <tr>
                <td align="left">\it tex2.zip</td>

                <td align="left">Plain formats, more
                <tt>TFM</tt>s</td>

                <td align="right">262Kb</td>

                <td align="right">403Kb</td>
              </tr>

              <tr>
                <td align="left">\it blatex.zip</td>

                <td align="left">Big TeX LaTeX format</td>

                <td align="right">227Kb</td>

                <td align="right">494Kb</td>
              </tr>

              <tr>
                <td align="left">\it latex1.zip</td>

                <td align="left">Documentation and formats</td>

                <td align="right">243Kb</td>

                <td align="right">393Kb</td>
              </tr>

              <tr>
                <td align="left">\it latex2.zip</td>

                <td align="left">LaTeX styles and
                <tt>TFM</tt>s</td>

                <td align="right">233Kb</td>

                <td align="right">705Kb</td>
              </tr>

              <tr>
                <td align="left">\it latexdoc.zip</td>

                <td align="left">LaTeX style documentation</td>

                <td align="right">110Kb</td>

                <td align="right">315Kb</td>
              </tr>

              <tr>
                <td align="left">\it makeindx.zip</td>

                <td align="left"><b>MakeIndex</b></td>

                <td align="right">52Kb</td>

                <td align="right">152Kb</td>
              </tr>

              <tr>
                <td align="left">\it pictex.zip</td>

                <td align="left">PiCTeX macros</td>

                <td align="right">43Kb</td>

                <td align="right">144Kb</td>
              </tr>

              <tr>
                <td align="left">\it texware.zip</td>

                <td align="left"><b>texchk</b>, <b>texconv</b>,
                <b>maketcp</b>,</td>

                <td align="right">265Kb</td>

                <td align="right">433Kb</td>
              </tr>

              <tr>
                <td align="left">&#160;</td>

                <td align="left">TeXware</td>

                <td class="auto-generated">&#160;</td>

                <td class="auto-generated">&#160;</td>
              </tr>

              <tr>
                <td align="left">\it dvidrv1.zip</td>

                <td align="left">Driver configuration, batch,</td>

                <td align="right">119Kb</td>

                <td align="right">370Kb</td>
              </tr>

              <tr>
                <td align="left">\it</td>

                <td align="left">and setup files</td>

                <td class="auto-generated">&#160;</td>

                <td class="auto-generated">&#160;</td>
              </tr>

              <tr>
                <td align="left">\it dvidrv2.zip</td>

                <td align="left">Driver executables</td>

                <td align="right">345Kb</td>

                <td align="right">551Kb</td>
              </tr>

              <tr>
                <td align="left">\it dvidrv3.zip</td>

                <td align="left">Preview executables</td>

                <td align="right">293Kb</td>

                <td align="right">506Kb</td>
              </tr>

              <tr>
                <td align="left">\it texcad.zip</td>

                <td align="left">TeXCad</td>

                <td align="right">118Kb</td>

                <td align="right">236Kb</td>
              </tr>

              <tr>
                <td align="left">\it bmf1.zip</td>

                <td align="left">Big MetaFont</td>

                <td align="right">261Kb</td>

                <td align="right">472Kb</td>
              </tr>

              <tr>
                <td align="left">\it mf1.zip</td>

                <td align="left">MetaFont executables</td>

                <td align="right">245Kb</td>

                <td align="right">398Kb</td>
              </tr>

              <tr>
                <td align="left">\it mf2.zip</td>

                <td align="left">MetaFont sources,</td>

                <td align="right">337Kb</td>

                <td align="right">613Kb</td>
              </tr>

              <tr>
                <td align="left">\it</td>

                <td align="left">OS/2 executable</td>

                <td class="auto-generated">&#160;</td>

                <td class="auto-generated">&#160;</td>
              </tr>

              <tr>
                <td align="left">\it mf3.zip</td>

                <td align="left">MetaFont sources</td>

                <td align="right">273Kb</td>

                <td align="right">768Kb</td>
              </tr>

              <tr>
                <td align="left">\it mfware1.zip</td>

                <td align="left"><tt>GF</tt> tools, <tt>PK</tt>
                tools</td>

                <td align="right">320Kb</td>

                <td align="right">504Kb</td>
              </tr>

              <tr>
                <td align="left">\it bibtex.zip</td>

                <td align="left">BibTeX</td>

                <td align="right">117Kb</td>

                <td align="right">319Kb</td>
              </tr>

              <tr>
                <td align="left">\it bmf2.zip</td>

                <td align="left">OS/2 executable,</td>

                <td align="right">266Kb</td>

                <td align="right">564Kb</td>
              </tr>

              <tr>
                <td align="left">&#160;</td>

                <td align="left">Big MetaFont bases</td>

                <td class="auto-generated">&#160;</td>

                <td class="auto-generated">&#160;</td>
              </tr>

              <tr>
                <td align="left">\it btex1.zip</td>

                <td align="left">Big TeX executables</td>

                <td align="right">259Kb</td>

                <td align="right">447Kb</td>
              </tr>

              <tr>
                <td align="left">\it btex2.zip</td>

                <td align="left">Big TeX Plain format</td>

                <td align="right">269Kb</td>

                <td align="right">533Kb</td>
              </tr>

              <tr>
                <td align="left">\it emsy.zip</td>

                <td align="left">Special fonts from emTeX</td>

                <td align="right">8Kb</td>

                <td align="right">11Kb</td>
              </tr>

              <tr>
                <td align="left">\it mfware2.zip</td>

                <td align="left"><b>MFjob</b>, some more
                inputs</td>

                <td align="right">138Kb</td>

                <td align="right">230Kb</td>
              </tr>

              <tr>
                <td align="left">\it misc_mf.zip</td>

                <td align="left">Miscellaneous inputs</td>

                <td align="right">36Kb</td>

                <td align="right">130Kb</td>
              </tr>

              <tr>
                <td align="left">\it pkedit.zip</td>

                <td align="left"><b>PKEdit</b></td>

                <td align="right">51Kb</td>

                <td align="right">97Kb</td>
              </tr>

              <tr>
                <td align="left">\it dvidrvma.zip</td>

                <td align="left">DVI driver manual</td>

                <td align="right">178Kb</td>

                <td align="right">494Kb</td>
              </tr>

              <tr>
                <td align="left">\it web.zip</td>

                <td align="left">\web tools</td>

                <td align="right">128Kb</td>

                <td align="right">252Kb</td>
              </tr>

              <tr>
                <td align="left">\it g*.zip</td>

                <td align="left">German versions of TeX</td>

                <td align="right">800Kb</td>

                <td align="right">1614Kb</td>
              </tr>
            </tbody>
          </table>
        </div>

        <p>For simplicity, the discussion that follows assumes that
        you have enough disk space to install the entire 12Mb
        distribution. If you can't get that much space (even
        temporarily), you can perform the steps discussed in the
        section &#8220;<a href="ch13.html#sec.emtex.smaller"
        title="Installing Fonts">the section called
        &#8220;Installing Fonts&#8221;</a>&#8221; as you
        install.</p>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2925718"
              name="id2925718"></a>Where to Start</h3>
            </div>
          </div>

          <p>Begin by reading the English (<tt>*.eng</tt>) or
          German (<tt>*.ger</tt>) documentation files on the first
          disk. Where there is disagreement between this book and
          those files, believe the files---especially if a new
          version of emTeX has been released.</p>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2925747"
              name="id2925747"></a>Unpacking the Archives</h3>
            </div>
          </div>

          <p>The emTeX<a id="id2925756" class="indexterm"
          name="id2925756"></a> distribution is a collection of
          <tt>ZIP</tt> files spread over six disks. You must
          install these files into your hard drive. If you have
          more than one hard disk, you may install emTeX on any
          drive you choose. Select one with more than 12Mb of free
          space, at first. You can copy the files onto another
          drive after you've deleted things that you don't
          need.</p>

          <p>All of the emTeX files are installed in a subdirectory
          tree rooted at <tt>emtex</tt>. If you absolutely must use
          a different subdirectory tree, unpack each archive file
          into a temporary directory and then copy the files into
          the subtree you want to use. You will have to do much
          more extensive customization of the batch files and
          configuration files before emTeX will work. That sort of
          customization isn't described here in detail.</p>

          <p>Make the root directory of the hard disk that you wish
          to install onto the current directory, and then use the
          <b>pkunzip</b><a id="id2925817" class="indexterm"
          name="id2925817"></a> program distributed on the first
          disk, or any later version of <b>pkunzip</b>, to unpack
          each of the archive files. You can also use the
          <b>Info-Zip</b><a id="id2925862" class="indexterm"
          name="id2925862"></a> version of <b>unzip</b> (version
          5.0 or later) to unpack the archives. If you do not want
          the German versions of the TeX macro files, do not bother
          to unpack the <tt>lkurz.zip</tt> or <tt>g*.zip</tt> files
          on disk six.</p>

          <p>After you have unpacked the files, you will have a
          directory tree rooted at <tt>\bs EMTEX</tt> containing
          about 12Mb of files and the following additional
          directories: <tt>bibinput</tt>, <tt>bmfbases</tt>,
          <tt>btexfmts</tt>, <tt>doc</tt>, <tt>mfbases</tt>,
          <tt>mfinput</tt>, <tt>MFjob</tt>, <tt>remove</tt>,
          <tt>texfmts</tt>, <tt>texinput</tt>, and
          <tt>tfm</tt>.</p>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2925984"
              name="id2925984"></a>Setting Up the Environment</h3>
            </div>
          </div>
          <a id="id2925990" class="indexterm" name="id2925990"></a>

          <p>A lot of information about where and how things are
          installed for emTeX is stored in the \glo{environment}.
          If you are unfamiliar with the DOS or OS/2 environment,
          consult your operating system reference for more details.
          In brief, the environment<a id="id2926007"
          class="indexterm" name="id2926007"></a> is a collection
          of named strings. For example, your <tt>PATH</tt> is in
          the environment.</p>

          <p>The emTeX distribution includes a batch file called
          <tt>set-tex</tt><a id="id2926042" class="indexterm"
          name="id2926042"></a>, which sets all of the environment
          variables that emTeX uses. Edit this file and change all
          references to C: to the drive where you installed emTeX.
          If you installed emTeX on drive C:, you needn't change
          anything. The section &#8220;<a
          href="ch13.html#sec.emtex.basiccust"
          title="Deleting extra documentation">the section called
          &#8220;Deleting extra documentation&#8221;</a>&#8221;
          later in this chapter describes the variables used by
          emTeX in greater detail.</p>

          <p>If you are using MS-DOS and haven't already made the
          environment larger than its default size, you may need to
          do so in order to use emTeX. Insert the following
          command, or something like it, in your
          <tt>CONFIG.SYS</tt> file:</p>
<pre class="screen">
SHELL=C:\COMMAND.COM /P /E:1024
</pre>

          <p>This is very system-dependent. You will have to use
          different settings if you keep <tt>COMMAND.COM</tt> in a
          subdirectory or if you use a different command
          processor.</p>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2926107"
              name="id2926107"></a>Testing the Installation</h3>
            </div>
          </div>

          <p><a id="id2926114" class="indexterm"
          name="id2926114"></a>After you have set up the
          environment, make the <tt>emtex</tt> directory the
          current directory and test TeX by typing:</p>

          <div class="informalexample">
<pre class="screen">
C:\ttbackslash{}EMTEX&gt;{\bf tex}
This is emTeX, Version 3.0 [3a] (no format preloaded)
**{\bf \ttbackslash{}relax}

*{\bf This is a test}

*{\bf \ttbackslash{}bye}
[1]
Output written on texput.dvi (1 page, 224 bytes).
Transcript written on texput.log.
</pre>
          </div>

          <p>This will produce a small <tt>DVI</tt> file called
          <tt>texput.dvi</tt><a id="id2926173" class="indexterm"
          name="id2926173"></a>. Keep this file; you can use it in
          a few minutes to test the previewer.</p>

          <p>To test LaTeX, enter the command:</p>
<pre class="screen">
\$ <span class="bold"><b>tex &amp;lplain testpage</b></span>
</pre>

          <p>See the section &#8220;<a
          href="ch03.html#sec.runtex.cmdcautions"
          title="Command-line Options">the section called
          &#8220;Command-line Options&#8221;</a>&#8221; in
          Chapter&#160;<a href="ch03.html"
          title="Chapter&#160;3.&#160;Running TeX">Chapter&#160;3</a>,
          <span class="emphasis"><em><a href="ch03.html"
          title="Chapter&#160;3.&#160;Running TeX">Chapter&#160;3</a></em></span>,
          for an explanation of some potential problems with using
          the ampersand (&amp;) character on the command line.</p>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="sec.emtex.smaller"
              name="sec.emtex.smaller"></a>Installing Fonts</h3>
            </div>
          </div>

          <p><a id="id2926254" class="indexterm"
          name="id2926254"></a><a id="id2926267" class="indexterm"
          name="id2926267"></a>There are several sets of fonts
          available for emTeX. You should select the set that is
          appropriate for your printer. They are summarized in
          Table&#160;<a href="ch13.html#tab.emtex.fontlibs"
          title="Table&#160;13.2.&#160;Fonts Libraries Available for \protect\emTeX on CTAN">
          Table&#160;13.2</a>. The CTAN directory
          <tt>systems/msdos/emtex</tt> contains the libraries or
          disks of libraries.</p>

          <div class="table">
            <a id="tab.emtex.fontlibs"
            name="tab.emtex.fontlibs"></a>

            <p class="title"><b>Table&#160;13.2.&#160;Fonts
            Libraries Available for \protect\emTeX on CTAN</b></p>

            <table
            summary="Fonts Libraries Available for \protect\emTeX on CTAN"
             border="1">
              <colgroup>
                <col align="left" />
                <col align="left" />
                <col align="left" />
              </colgroup>

              <thead>
                <tr>
                  <th align="left">\bf CTAN Directory</th>

                  <th align="left">\bf Resolution</th>

                  <th align="left">\bf Description</th>
                </tr>
              </thead>

              <tbody>
                <tr>
                  <td align="left">\it fx_\,fonts</td>

                  <td align="left">240x216</td>

                  <td align="left">Epson FX series printers, Tandy
                  DMP-130 printer</td>
                </tr>

                <tr>
                  <td align="left">\it fx_med_\,fonts</td>

                  <td align="left">240x144</td>

                  <td align="left">Epson FX series (for Windows
                  drivers)</td>
                </tr>

                <tr>
                  <td align="left">\it ito_\,fonts</td>

                  <td align="left">160x144</td>

                  <td align="left">C. ITOH 8510A printers</td>
                </tr>

                <tr>
                  <td align="left">\it lj_\,fonts</td>

                  <td align="left">300x300</td>

                  <td align="left">300dpi Laser printers</td>
                </tr>

                <tr>
                  <td align="left">\it p6h_\,fonts</td>

                  <td align="left">360x360</td>

                  <td align="left">Epson LQ series, NEC P6 \</td>

                  <td>P7, IBM Proprinter, and Panasonic KX-P1124
                  printers</td>
                </tr>

                <tr>
                  <td align="left">\it p6m_\,fonts</td>

                  <td align="left">360x180</td>

                  <td align="left">Epson LQ series, NEC P6 \</td>

                  <td>P7, IBM Proprinter, and Panasonic KX-P1124
                  printers</td>
                </tr>

                <tr>
                  <td align="left">\it p6l_\,fonts</td>

                  <td align="left">180x180</td>

                  <td align="left">Epson LQ series, NEC P6 \</td>

                  <td>P7, IBM Proprinter and Panasonic KX-P1124
                  printers</td>
                </tr>

                <tr>
                  <td align="left">\it psfonts</td>

                  <td align="left">300x300</td>

                  <td align="left">Standard 35 PostScript
                  fonts</td>

                  <td class="auto-generated">&#160;</td>
                </tr>
              </tbody>
            </table>
          </div>

          <p>Not every font set is appropriate for every model of
          the series mentioned. If your printer isn't mentioned,
          use the <b>dvidot</b><a id="id2926534" class="indexterm"
          name="id2926534"></a> program included with emTeX to
          generate an appropriate configuration file. Select the
          font set with the same resolution as your printer.</p>

          <p>The PostScript fonts included in the
          <tt>psfonts</tt><a id="id2926555" class="indexterm"
          name="id2926555"></a> libraries are suited primarily for
          previewing. The quality of many of the fonts is
          substandard. (They were generated from unhinted outlines
          with <b>Ghostscript</b><a id="id2926572"
          class="indexterm" name="id2926572"></a>.) A font
          substitution file is provided for 300dpi, 180dpi, and
          360dpi printers.</p>

          <p>Once you have retrieved the font libraries that you
          need, unpack them (if they are in <tt>ZIP</tt> archives)
          and place the <tt>FLI</tt> files in the <tt>\bs
          TEXFONTS</tt> directory of the drive where you installed
          emTeX. The amount of disk space required depends on the
          font set that you install. It can be more than 5.5
          megabytes. The section called &#8220;<a
          href="ch13.html#sec.emtex.autofont"
          title="Running emTeX 386 in Windows">the section called
          &#8220;Running emTeX 386 in Windows&#8221;</a>,&#8221;
          later in this chapter, provides an overview of automatic
          font generation under emTeX. This can save a considerable
          amount of disk space.</p>

          <div class="section">
            <div class="titlepage">
              <div>
                <h4 class="title"><a id="id2926632"
                name="id2926632"></a>Testing font installation</h4>
              </div>
            </div>

            <p>After you have installed a font set, you should be
            able to preview and print TeX documents. If you
            followed the instructions in &#8220;<a
            href="ch13.html#sec.emtex.testinstall"
            title="emTeX">the section called
            &#8220;emTeX&#8221;</a>,&#8221; earlier in this
            chapter, you have two <tt>DVI</tt> files in your
            <tt>\bs EMTEX</tt> directory.</p>

            <p>First, figure out which configuration file is
            appropriate for your installation. The table near the
            top of <tt>dvidrv.doc</tt> in the emTeX documentation
            directory should help you determine which one is
            appropriate.</p>

            <p>The default configuration file for previewing is the
            LaserJet configuration. If you installed the LaserJet
            fonts (<tt>lj\ttunder*.fli</tt>), you do not have to
            change the previewer. Otherwise, edit the preview batch
            file (<tt>v.bat</tt> for MS-DOS systems and
            <tt>v.cmd</tt> for OS/2 systems) and change the
            configuration file. The preview batch file looks like
            this:</p>
<pre class="screen">
@echo off
dviscr @lj.cnf /ocr=1 /fl=-1 
</pre>

            <p>The configuration file name is <tt>lj.cnf</tt>. If,
            for example, you are using the Epson FX series printer
            fonts, you would change this to <tt>fx.cnf</tt>:</p>
<pre class="screen">
@echo off
dviscr @fx.cnf /ocr=1 /fl=-1 
</pre>

            <p>Now type <span class="bold"><b>v texput</b></span>
            to preview the test file. Under OS/2, you should do
            this from a full-screen session, not a windowed
            session. You can type <span class="bold"><b>v
            testpage</b></span> to preview the LaTeX test page, if
            you created it.</p>
          </div>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2926788"
              name="id2926788"></a>Making emTeX Smaller</h3>
            </div>
          </div>

          <p><a id="id2926796" class="indexterm"
          name="id2926796"></a>The complete distribution of emTeX
          is much larger than the practical requirements. This
          section discusses the pros and cons of deleting (or at
          least archiving) parts of the emTeX distribution.</p>

          <div class="section">
            <div class="titlepage">
              <div>
                <h4 class="title"><a id="sec.emtex.basiccust"
                name="sec.emtex.basiccust"></a>Deleting extra
                documentation</h4>
              </div>
            </div>

            <p>The <tt>\bs emtex\bs doc</tt> directory contains two
            complete sets of documentation, one in English and the
            other in German. Delete the set that you do not need.
            This will save about 500Kb.</p>
          </div>

          <div class="section">
            <div class="titlepage">
              <div>
                <h4 class="title"><a id="id2926842"
                name="id2926842"></a>Deleting extra
                executables</h4>
              </div>
            </div>

            <p>There are six versions of the TeX and MetaFont
            executables in the emTeX distribution. You can probably
            delete at least four from each. Follow these
            guidelines:</p>

            <div class="itemizedlist">
              <ul type="disc">
                <li>
                  <p>If you have a 80286 or larger processor,
                  delete the non-286 versions: <tt>btex.exe</tt>,
                  <tt>tex.exe</tt>, <tt>bmf.exe</tt>, and
                  <tt>mf.exe</tt>.</p>
                </li>

                <li>
                  <p>If you do not have OS/2, delete the OS/2
                  versions: <tt>btexp.exe</tt>, <tt>texp.exe</tt>,
                  <tt>bmfp.exe</tt>, and <tt>mfp.exe</tt>.
                  Conversely, if you have OS/2 and you are
                  satisfied that you will never want to run TeX or
                  MetaFont under DOS or Windows, delete the
                  non-OS/2 versions: <tt>btex286.exe</tt>,
                  <tt>tex286.exe</tt>, <tt>bmf286.exe</tt>,
                  <tt>mf286.exe</tt>, and the non-286 versions
                  listed above. If you need both, you'll have to
                  keep both around, of course.</p>
                </li>

                <li>
                  <p>Finally, if disk space is at a premium and/or
                  you have a fast computer, you may choose to
                  delete the small versions of TeX and MetaFont.
                  The small versions are faster than the big
                  versions, but large or complex documents and
                  fonts may require the big versions, so don't
                  delete them. If you want to delete the small
                  versions, delete <tt>tex.exe</tt>,
                  <tt>tex286.exe</tt>, <tt>mf.exe</tt>,
                  <tt>mf286.exe</tt>, <tt>texp.exe</tt>, and
                  <tt>mfp.exe</tt>. In this case you must keep at
                  least one of <tt>btex.exe</tt>,
                  <tt>btex286.exe</tt>, and <tt>btexp.exe</tt>
                  depending on your environment. Similarly, you
                  must keep at least one of the big \MF{}s. If
                  you've decided to delete the small versions, you
                  can also delete two directories:
                  <tt>emtex{\bs}mfbases</tt> and
                  <tt>emtex{\bs}texfmts</tt>. These contain the
                  format files and base files for the small
                  versions of TeX and MetaFont.</p>
                </li>
              </ul>
            </div>

            <p>Suppose that you have a 80386 computer running
            MS-DOS (not OS/2) and you are willing to sacrifice the
            speed of the small versions of TeX and MetaFont. You
            would keep the <tt>btex286.exe</tt> and
            <tt>bmf286.exe</tt> executables and delete the rest
            plus the formats and bases that you don't need, saving
            2704Kb. You can save an equivalent amount of space by
            deleting the big 80286 versions and keeping the big
            non-286 versions, or by deleting all of the non-OS/2
            versions, depending on your environment.</p>

            <p>Table&#160;<a href="ch13.html#tab.emtexotherex"
            title="Table&#160;13.3.&#160;Other \protect\emTeX Executables">
            Table&#160;13.3</a> summarizes the other executables in
            the emTeX distribution. This will help you decide which
            programs you need to keep. Programs that you don't feel
            you need should probably be stored in archive files,
            possibly on diskettes, in case you change your
            mind.</p>

            <div class="table">
              <a id="tab.emtexotherex" name="tab.emtexotherex"></a>

              <p class="title"><b>Table&#160;13.3.&#160;Other
              \protect\emTeX Executables</b></p>

              <table summary="Other \protect\emTeX Executables"
              border="1">
                <colgroup>
                  <col align="left" />
                  <col align="right" />
                  <col align="left" />
                </colgroup>

                <thead>
                  <tr>
                    <th align="left">\bf Program</th>

                    <th align="right">\multicolumn{1}{|l|}{\bf
                    Size}</th>

                    <th align="left">\bf Description</th>
                  </tr>
                </thead>

                <tbody>
                  <tr>
                    <td align="left">\it ask.exe</td>

                    <td align="right">6Kb</td>

                    <td align="left">Prompts user in batch file,
                    only used by gh.bat</td>
                  </tr>

                  <tr>
                    <td align="left">\it bibtex.exe</td>

                    <td align="right">94Kb</td>

                    <td align="left">BibTeX</td>
                  </tr>

                  <tr>
                    <td align="left">\it chtopx.exe</td>

                    <td align="right">39Kb</td>

                    <td align="left">Obsolete: converts
                    <tt>CHR</tt> files to <tt>PXL</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it pxtoch.exe</td>

                    <td align="right">40Kb</td>

                    <td align="left">Obsolete: converts
                    <tt>PXL</tt> files to <tt>CHR</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it pxtopk.exe</td>

                    <td align="right">49Kb</td>

                    <td align="left">Obsolete: converts
                    <tt>PXL</tt> files to <tt>PK</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it dvidot.exe</td>

                    <td align="right">129Kb</td>

                    <td align="left">Dot matrix printer driver</td>
                  </tr>

                  <tr>
                    <td align="left">\it dvihplj.exe</td>

                    <td align="right">134Kb</td>

                    <td align="left">HP LaserJet printer
                    driver</td>
                  </tr>

                  <tr>
                    <td align="left">\it makedot.exe</td>

                    <td align="right">54Kb</td>

                    <td align="left">Updates dot matrix printer
                    parameters</td>
                  </tr>

                  <tr>
                    <td align="left">\it dvimsp.exe</td>

                    <td align="right">128Kb</td>

                    <td align="left">Converts <tt>DVI</tt> files
                    into graphic images</td>
                  </tr>

                  <tr>
                    <td align="left">\it fontlib.exe</td>

                    <td align="right">67Kb</td>

                    <td align="left">Font library management</td>
                  </tr>

                  <tr>
                    <td align="left">\it maketcp.exe</td>

                    <td align="right">28Kb</td>

                    <td align="left">Change the TeX code page</td>
                  </tr>

                  <tr>
                    <td align="left">\it MFjob.exe</td>

                    <td align="right">51Kb</td>

                    <td align="left">MetaFont driver</td>
                  </tr>

                  <tr>
                    <td align="left">\it pcltomsp.exe</td>

                    <td align="right">56Kb</td>

                    <td align="left">Converts HP LaserJet graphics
                    into <tt>MSP</tt> or <tt>PCX</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it pkedit.exe</td>

                    <td align="right">94Kb</td>

                    <td align="left">Edits <tt>PK</tt> files</td>
                  </tr>

                  <tr>
                    <td align="left">\it pktopx.exe</td>

                    <td align="right">55Kb</td>

                    <td align="left">Converts <tt>PK</tt> files to
                    <tt>PXL</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it texcad.exe</td>

                    <td align="right">79Kb</td>

                    <td align="left">Interactive LaTeX drawing
                    tool</td>
                  </tr>

                  <tr>
                    <td align="left">\it texchk.exe</td>

                    <td align="right">49Kb</td>

                    <td align="left">Syntax checker for LaTeX</td>
                  </tr>

                  <tr>
                    <td align="left">\it texconv.exe</td>

                    <td align="right">27Kb</td>

                    <td align="left">Converts input files (see
                    &#8220;code pages&#8221;)</td>
                  </tr>

                  <tr>
                    <td align="left">\it dviscr.exe</td>

                    <td align="right">215Kb</td>

                    <td align="left">Previewer</td>
                  </tr>

                  <tr>
                    <td align="left">\it dviscrs.exe</td>

                    <td align="right">164Kb</td>

                    <td align="left">Previewer for small-memory
                    configurations</td>
                  </tr>

                  <tr>
                    <td align="left">\it dvivik.exe</td>

                    <td align="right">142Kb</td>

                    <td align="left">Previewer for Viking I
                    displays</td>
                  </tr>

                  <tr>
                    <td align="left">\it dvitype.exe</td>

                    <td align="right">72Kb</td>

                    <td align="left">Texware: shows <tt>DVI</tt>
                    file</td>
                  </tr>

                  <tr>
                    <td align="left">\it pltotf.exe</td>

                    <td align="right">74Kb</td>

                    <td align="left">Texware: converts <tt>PL</tt>
                    files to <tt>TFM</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it tftopl.exe</td>

                    <td align="right">48Kb</td>

                    <td align="left">Texware: converts <tt>TFM</tt>
                    files to <tt>PL</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it gftodvi.exe</td>

                    <td align="right">69Kb</td>

                    <td align="left">Mfware: makes proof sheets for
                    a font</td>
                  </tr>

                  <tr>
                    <td align="left">\it gftopk.exe</td>

                    <td align="right">53Kb</td>

                    <td align="left">Mfware: converts <tt>GF</tt>
                    files to <tt>PK</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it gftopxl.exe</td>

                    <td align="right">59Kb</td>

                    <td align="left">Mfware: converts <tt>GF</tt>
                    files to <tt>PXL</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it gftype.exe</td>

                    <td align="right">61Kb</td>

                    <td align="left">Mfware: shows <tt>GF</tt>
                    file</td>
                  </tr>

                  <tr>
                    <td align="left">\it mft.exe</td>

                    <td align="right">55Kb</td>

                    <td align="left">Mfware: pretty-prints
                    <tt>MF</tt> files</td>
                  </tr>

                  <tr>
                    <td align="left">\it pktogf.exe</td>

                    <td align="right">47Kb</td>

                    <td align="left">Mfware: converts <tt>PK</tt>
                    files to <tt>GF</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it pktype.exe</td>

                    <td align="right">45Kb</td>

                    <td align="left">Mfware: shows <tt>PK</tt>
                    file</td>
                  </tr>

                  <tr>
                    <td align="left">\it makeindx.exe</td>

                    <td align="right">102Kb</td>

                    <td align="left">Builds indices for
                    documents</td>
                  </tr>

                  <tr>
                    <td align="left">\it pooltype.exe</td>

                    <td align="right">31Kb</td>

                    <td align="left">Web: shows contents of pool
                    files</td>
                  </tr>

                  <tr>
                    <td align="left">\it tangle.exe</td>

                    <td align="right">52Kb</td>

                    <td align="left">Web: creates compilable
                    file</td>
                  </tr>

                  <tr>
                    <td align="left">\it weave.exe</td>

                    <td align="right">72Kb</td>

                    <td align="left">Web: creates documentation
                    file</td>
                  </tr>

                  <tr>
                    <td align="left">\it vftovp.exe</td>

                    <td align="right">69Kb</td>

                    <td align="left">Virtual fonts: converts
                    <tt>VF</tt> files to <tt>VPL</tt> format</td>
                  </tr>

                  <tr>
                    <td align="left">\it vptovf.exe</td>

                    <td align="right">73Kb</td>

                    <td align="left">Virtual fonts: converts
                    <tt>VPL</tt> files to <tt>VF</tt> format</td>
                  </tr>
                </tbody>
              </table>
            </div>

            <p>Deciding which programs to remove from the emTeX
            directory depends, to a large extent, on how you use
            TeX. If you haven't been using TeX for very long, try
            to keep as many things as you can until you get a
            better feel for what you'll be using. Save copies of
            all the programs you delete on floppy disks so that
            they are easy to get back. Here are some
            suggestions:</p>

            <div class="itemizedlist">
              <ul type="disc">
                <li>
                  <p>Delete the previewer and printer drivers that
                  you don't need.</p>
                </li>

                <li>
                  <p>Delete obsolete programs unless you know you
                  need them.</p>
                </li>

                <li>
                  <p>Delete \web programs if you'll never be
                  compiling TeX yourself or reading TeX program
                  source code.</p>
                </li>

                <li>
                  <p>Delete <b>Mfware</b> programs if you won't be
                  doing a lot of work with fonts. Note: keep
                  <b>gftopk.exe</b> if you want to use automatic
                  font generation.</p>
                </li>

                <li>
                  <p>Delete <b>Texware</b> and <b>Virtual</b> font
                  programs if you won't be working with virtual
                  fonts. (You can probably delete
                  <b>dvitype.exe</b>, in any case).</p>
                </li>

                <li>
                  <p>Delete <b>bibtex.exe</b> if you won't be
                  working with bibliographic databases.</p>
                </li>

                <li>
                  <p>Delete <b>makeindx.exe</b> if you won't be
                  working with indexes.</p>
                </li>

                <li>
                  <p>Delete <b>ask.exe</b> if you won't be using
                  <b>gh.bat</b>.</p>
                </li>
              </ul>
            </div>

            <p>Next, figure out what batch files you'll be using
            and delete (or archive) all the others. If you aren't
            using OS/2, this includes all of the <tt>*.cmd</tt>
            files.</p>
          </div>

          <div class="section">
            <div class="titlepage">
              <div>
                <h4 class="title"><a id="id2928261"
                name="id2928261"></a>Deleting extra printer
                drivers</h4>
              </div>
            </div>

            <p>Read about the <b>dvidot</b><a id="id2928276"
            class="indexterm" name="id2928276"></a> program for
            printing to a dot matrix printer, if you have one. When
            you figure out which of the <tt>DOT</tt> parameter
            files you need, delete (or archive) the rest. Follow
            these guidelines:</p>

            <div class="itemizedlist">
              <ul type="disc">
                <li>
                  <p>If you don't have a Viking I display, delete
                  <b>dvivik.exe</b>.</p>
                </li>

                <li>
                  <p>If you don't have a laser printer, delete
                  <b>dvihplj.exe</b>.</p>
                </li>

                <li>
                  <p>Delete <b>dviscrs.exe</b> if you have enough
                  memory to use <b>dviscr</b> instead. If you are
                  always going to use a Windows or OS/2 previewer,
                  you can delete <b>dviscr.exe</b> as well.</p>
                </li>
              </ul>
            </div>
          </div>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2928367"
              name="id2928367"></a>Basic Customization</h3>
            </div>
          </div>

          <p><a id="id2928375" class="indexterm"
          name="id2928375"></a>There are two ways to customize
          emTeX. One way is to customize the environment variables
          that emTeX uses; the other is to customize the
          configuration files that emTeX uses for previewing and
          printing (configuration files have no effect on TeX
          itself).</p>

          <div class="section">
            <div class="titlepage">
              <div>
                <h4 class="title"><a id="sec.betaemtex"
                name="sec.betaemtex"></a>Environment variables</h4>
              </div>
            </div>

            <p>There are thirteen environment variables<a
            id="id2928409" class="indexterm"
            name="id2928409"></a><a id="id2928422"
            class="indexterm" name="id2928422"></a> that emTeX
            uses. For simplicity in the following discussion,
            assume that emTeX is installed on drive C:. If it is
            not, change <span
            class="emphasis"><em>every</em></span> reference to C:
            to the drive actually in use.</p>

            <div class="variablelist">
              <dl>
                <dt><span class="term"><tt>EMTEXDRV</tt><a
                id="id2928458" class="indexterm"
                name="id2928458"></a> (Not set by
                default)</span></dt>

                <dd>
                  <p>Special note: this variable will become
                  obsolete with the next release of emTeX.</p>

                  <p>This variable tells emTeX what drive to use
                  when searching for default paths. Although I
                  don't recommend it, if you use entirely standard
                  paths for your files, you can rely on the
                  compiled-in defaults in the emTeX
                  executables.<sup>[<a id="id2928486"
                  name="id2928486"
                  href="#ftn.id2928486">123</a>]</sup> The
                  <tt>EMTEXDRV</tt> environment variable should be
                  set to the single letter of the drive on which
                  these paths reside. For example, if you installed
                  emTeX on drive C: (in completely standard
                  directories), you could set
                  <tt><tt>EMTEXDRV</tt>=C</tt>.</p>
                </dd>

                <dt><span class="term"><tt>EMTEXDIR</tt><a
                id="id2928532" class="indexterm"
                name="id2928532"></a> (Not set by
                default)</span></dt>

                <dd>
                  <p>Special note: this is a new variable; it will
                  become available with the next release of emTeX.
                  <tt>EMTEXDIR</tt> replaces <tt>EMTEXDRV</tt>.</p>

                  <p>This variable tells emTeX what path to use
                  when searching for default paths. The
                  <tt>EMTEXDIR</tt> environment variable should be
                  set to the root path where emTeX is installed
                  (for example, <tt>C:\EMTEX</tt>).</p>
                </dd>

                <dt><span class="term"><tt>TEXINPUT</tt><a
                id="id2928598" class="indexterm"
                name="id2928598"></a></span></dt>

                <dd>
                  <p>Defines the directories that emTeX uses when
                  searching for TeX input files. You would
                  typically leave
                  <tt>C:{\bs}EMTEX{\bs}TEXINPUT</tt> in this path
                  and extend it with directories of your own in
                  place of <tt>C:{\bs}MYTEX</tt>.</p>
                </dd>

                <dt><span class="term"><tt>TEXFMT</tt><a
                id="id2928651" class="indexterm"
                name="id2928651"></a></span></dt>

                <dd>
                  <p>Specifies where small versions of TeX look for
                  format files. Typically you would leave this set
                  as it is and add new format files to that
                  directory. You do not have to set this variable
                  if you are not using the small versions of
                  TeX.</p>
                </dd>

                <dt><span class="term"><tt>BTEXFMT</tt><a
                id="id2928691" class="indexterm"
                name="id2928691"></a></span></dt>

                <dd>
                  <p>Specifies where large versions of TeX look for
                  format files. You will typically leave this set
                  as it is and add new format files to the
                  directory specified. If you do not use large
                  versions of TeX, you need not set this
                  variable.</p>
                </dd>

                <dt><span class="term"><tt>TEXTFM</tt><a
                id="id2928731" class="indexterm"
                name="id2928731"></a></span></dt>

                <dd>
                  <p>TeX uses the directories stored in this
                  variable when searching for <tt>TFM</tt> files
                  for fonts used in your documents. If you install
                  new fonts, you should put the <tt>TFM</tt> files
                  for these fonts in their own directory and add
                  the name of that directory to the <tt>TEXTFM</tt>
                  path.</p>
                </dd>

                <dt><span class="term"><tt>MFINPUT</tt><a
                id="id2928794" class="indexterm"
                name="id2928794"></a></span></dt>

                <dd>
                  <p>The MetaFont program looks for input files in
                  this path. It is analogous to the
                  <tt>TEXINPUT</tt> variable. If you add new
                  MetaFont fonts to your system, for example, the
                  \AmS fonts, place them in a different directory
                  and add that directory to this path. If you do
                  not use MetaFont, you do not need this
                  variable.</p>
                </dd>

                <dt><span class="term"><tt>MFBAS</tt><a
                id="id2928840" class="indexterm"
                name="id2928840"></a></span></dt>

                <dd>
                  <p>Analogous to <tt>TEXFMT</tt>. Specifies where
                  small versions of MetaFont look for base files.
                  If you do not use MetaFont, you do not need this
                  variable.</p>
                </dd>

                <dt><span class="term"><tt>BMFBAS</tt><a
                id="id2928882" class="indexterm"
                name="id2928882"></a></span></dt>

                <dd>
                  <p>Analogous to <tt>BTEXFMT</tt>. Specifies where
                  large versions of MetaFont look for base files.
                  If you do not use MetaFont, you do not need this
                  variable.</p>
                </dd>

                <dt><span class="term"><tt>MFJOB</tt><a
                id="id2928924" class="indexterm"
                name="id2928924"></a></span></dt>

                <dd>
                  <p>Specifies where <b>MFjob</b> looks for input
                  files. If you are not using MetaFont or
                  <b>MFjob</b> for font generation, you do not need
                  this variable.</p>
                </dd>

                <dt><span class="term"><tt>BIBINPUT</tt><a
                id="id2928976" class="indexterm"
                name="id2928976"></a></span></dt>

                <dd>
                  <p>Specifies where <b>bibtex</b> searches for
                  bibliography database files (<tt>BIB</tt> files).
                  Clearly, if you're not using BibTeX, you don't
                  need <tt>BIBINPUT</tt>.</p>
                </dd>

                <dt><span class="term"><tt>DVIDRVINPUT</tt><a
                id="id2929034" class="indexterm"
                name="id2929034"></a></span></dt>

                <dd>
                  <p>This tells the emTeX DVI drivers where to
                  search for <tt>DVI</tt> files. In practice, I
                  simply set this to &#8220;<tt>.</tt>&#8221; so
                  that only the current directory is used. If you
                  find it convenient to search for <tt>DVI</tt>
                  files, by all means set it to an appropriate
                  path. The default path includes
                  <tt>C:{\bs}EMTEX{\bs}DOC</tt> so that it is easy
                  to preview or print the local guide.</p>
                </dd>

                <dt><span class="term"><tt>DVIDRVFONTS</tt><a
                id="id2929109" class="indexterm"
                name="id2929109"></a></span></dt>

                <dd>
                  <p>This tells the emTeX DVI drivers where to
                  search for fonts. The <tt>C:{\bs}TEXFONTS</tt>
                  directory is the default location for font
                  libraries. If other fonts are installed, it's
                  natural to include them in this path. For
                  example, preview versions of the PostScript fonts
                  are now available from CTAN in font library
                  format. If you install those libraries in
                  <tt>C:{\bs}PSFONTS</tt>, you should change the
                  <tt>DVIDRVFONTS</tt> environment variable to
                  include both paths.</p>
                </dd>

                <dt><span class="term"><tt>DVIDRVGRAPH</tt><a
                id="id2929166" class="indexterm"
                name="id2929166"></a></span></dt>

                <dd>
                  <p>The emTeX DVI drivers can incorporate
                  <tt>PCX</tt> and <tt>MSP</tt> graphics with a
                  \special command. The <tt>DVIDRVGRAPH</tt>
                  environment variable tells the drivers where to
                  look for the graphic files. The <tt>$r</tt>
                  portion of the path is replaced by the resolution
                  of the image required. For example, I set this to
                  <tt>C:{\bs}TEXGRAPH{\bs}GR\$r</tt> and put 300dpi
                  graphic images in
                  <tt>C:{\bs}TEXGRAPH{\bs}GR300</tt>, 420dpi images
                  in <tt>C:{\bs}TEXGRAPH{\bs}GR420</tt>, etc. The
                  default value of this variable is set so that the
                  local guide will print properly.</p>
                </dd>
              </dl>
            </div>
          </div>

          <div class="section">
            <div class="titlepage">
              <div>
                <h4 class="title"><a id="id2929255"
                name="id2929255"></a>Setting up configuration
                files</h4>
              </div>
            </div>

            <p><a id="id2929262" class="indexterm"
            name="id2929262"></a>Configuration file options are
            described completely in the DVI driver documentation
            that accompanies emTeX. Read the English or German
            versions of <tt>dvidrv.doc</tt> carefully. The
            &#8220;out of the box&#8221; configuration is
            sufficient for most uses, but specifying a new
            configuration file is a convenient way to alter the
            default size of the page in preview mode or set up
            emTeX to print pages in &#8220;two-up&#8221; or
            &#8220;four-up&#8221; variations (for printing
            booklets, for example).</p>
          </div>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2929307"
              name="id2929307"></a>Installing the Beta Test
              Versions of emTeX</h3>
            </div>
          </div>

          <p>It has been several years since the standard
          distribution of emTeX was assembled. In that time,
          several other releases have been made. These are beta
          test releases, but they are as rock-solid as the standard
          distribution. Personally, I encourage you to install the
          beta test versions, especially because they offer
          features not found in the standard release.</p>

          <p>The beta test versions are stored in a series of
          <tt>ZIP</tt> files at CTAN in the directory
          <tt>systems/msdos/emtex/betatest</tt>. Table&#160;<a
          href="ch13.html#tab.emtex.betasummary"
          title="Table&#160;13.4.&#160;The Beta Test Files for \protect\emTeX">
          Table&#160;13.4</a> summarizes the files in the beta test
          distribution.\footnote{As this chapter is being written,
          Eberhard Mattes\index{Mattes, Eberhard} is working on a
          new version of \emTeX. This new version will, at some
          point, replace the existing beta test files, making this
          section somewhat out of date. Use the <span
          class="emphasis"><em>READ.ME</em></span> files in the
          actual distribution as the definitive source of
          information.</p>

          <div class="table">
            <a id="tab.emtex.betasummary"
            name="tab.emtex.betasummary"></a>

            <p class="title"><b>Table&#160;13.4.&#160;The Beta Test
            Files for \protect\emTeX</b></p>

            <table summary="The Beta Test Files for \protect\emTeX"
            border="1">
              <colgroup>
                <col align="left" />
                <col align="left" />
              </colgroup>

              <thead>
                <tr>
                  <th align="left">\bf File</th>

                  <th align="left">\bf Contents</th>
                </tr>
              </thead>

              <tbody>
                <tr>
                  <td align="left">\it btexb8.zip</td>

                  <td align="left">Big \TeX executables</td>
                </tr>

                <tr>
                  <td align="left">\it dvidrv_1.zip</td>

                  <td align="left">New drivers and support
                  files</td>
                </tr>

                <tr>
                  <td align="left">\it dvispell.zip</td>

                  <td align="left">\program{dvispell}</td>
                </tr>

                <tr>
                  <td align="left">\it maketcp.zip</td>

                  <td align="left">\program{maketcp}</td>
                </tr>

                <tr>
                  <td align="left">\it mfb1.zip</td>

                  <td align="left">\MF executables</td>
                </tr>

                <tr>
                  <td align="left">\it MFjob11l.zip</td>

                  <td align="left">\program{MFjob}</td>
                </tr>

                <tr>
                  <td align="left">\it mfpm.zip</td>

                  <td align="left">OS/2 support for \MF
                  preview</td>
                </tr>

                <tr>
                  <td align="left">\it pkeditpm.zip</td>

                  <td align="left">OS/2 PM version of
                  \program{PKEdit}</td>
                </tr>

                <tr>
                  <td align="left">\it tex386b8.zip</td>

                  <td align="left">386 version of \TeX</td>
                </tr>

                <tr>
                  <td align="left">\it texb5.zip</td>

                  <td align="left">Small \TeX executables</td>
                </tr>
              </tbody>
            </table>
          </div>

          <p>To install the beta test versions, simply unpack the
          archives into your <tt>\bs emtex</tt> directory,
          replacing any existing files with the new versions. After
          you have installed the beta test versions, you can repeat
          the space-saving steps suggested earlier in this
          chapter.</p>

          <p>What are the advantages of the beta test versions?</p>

          <div class="itemizedlist">
            <ul type="disc">
              <li>
                <p>Automatic font generation is supported. This
                means that you do not need large font library
                files.</p>
              </li>

              <li>
                <p>The beta test versions are TeX version 3.141;
                the standard distribution is the slightly older
                version 3.0.</p>
              </li>

              <li>
                <p>The beta test distribution includes a
                386-specific version of TeX, which is much faster
                than other versions.</p>
              </li>

              <li>
                <p>For OS/2 users, a Presentation Manager
                <tt>DVI</tt> previewer is provided.</p>
              </li>
            </ul>
          </div>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="sec.emtex.autofont"
              name="sec.emtex.autofont"></a>Running emTeX 386 in
              Windows</h3>
            </div>
          </div>

          <p><a id="id2929644" class="indexterm"
          name="id2929644"></a><a id="id2929656" class="indexterm"
          name="id2929656"></a>The 386-specific version of TeX
          provided by the beta test distributions of emTeX has some
          compelling advantages over the other TeX executables:
          it's a big TeX and it's fast. Unfortunately, it does not
          run in Windows (or some other MS-DOS environments).</p>

          <p>The problem is memory management. In order to be large
          and fast, the <tt>tex386</tt><a id="id2929686"
          class="indexterm" name="id2929686"></a> executable relies
          on some advanced features of the 386 (and higher)
          processors. These features are provided under MS-DOS by a
          &#8220;DOS extender.&#8221; The DOS extender<a
          id="id2929701" class="indexterm" name="id2929701"></a>
          allows MS-DOS applications to use &#8220;protected
          mode,&#8221; where they can address more than 640Kb of
          memory. There are several competing standards for
          protected mode memory management. <tt>emx</tt><a
          id="id2929728" class="indexterm" name="id2929728"></a>,
          the extender implemented in emTeX, is not compatible with
          the DPMI standard used by Microsoft Windows and some
          other MS-DOS extenders (for example, MS-DOS sessions
          under OS/2).</p>

          <p>Luckily, there is a freely available MS-DOS extender,
          which is compatible with both DPMI and emTeX, the RSX
          extender. Starting with version beta-11 of emTeX, the<a
          id="id2929744" class="indexterm" name="id2929744"></a> is
          very easy to use.<sup>[<a id="id2929756" name="id2929756"
          href="#ftn.id2929756">124</a>]</sup></p>

          <p>There are two versions of the extender: <tt>rsx</tt><a
          id="id2929798" class="indexterm" name="id2929798"></a>,
          for use in MS-DOS with DPMI extenders<a id="id2929808"
          class="indexterm" name="id2929808"></a>, and
          <tt>rsxwin</tt><a id="id2929822" class="indexterm"
          name="id2929822"></a>, for use in Windows. Both versions
          are available on the CTAN archives in the directory
          <tt>support/msdos/dpmi/rsx</tt>.</p>

          <p>To use the RSX extender in MS-DOS with <tt>tex386</tt>
          version beta-11 or later, simply put <tt>rsx.exe</tt>
          somewhere on your <tt>PATH</tt>. When emTeX discovers a
          DPMI extender, it will use <tt>rsx</tt> instead of
          <tt>emx</tt>.</p>

          <p>To use the RSX extender in Windows, you must modify
          the command line that is executed to run <tt>tex386</tt>.
          Where you currently use:</p>
<pre class="screen">
<span class="emphasis"><em>d:{\bs}path1\bs</em></span>tex.exe <span
class="emphasis"><em>options</em></span>
</pre>

          <p>you must now use:</p>
<pre class="screen">
<span
class="emphasis"><em>d:{\bs}path2\bs</em></span>rsxwin.exe -e <span
class="emphasis"><em>d:\bs path1\bs</em></span>tex386.exe <span
class="emphasis"><em>options</em></span>
</pre>

          <p>The <tt>rsxwin</tt> extender will set up an extender
          for emTeX and then run TeX.</p>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="id2929946"
              name="id2929946"></a>Automatic Font Generation with
              emTeX</h3>
            </div>
          </div>

          <div class="note"
          style="margin-left: 0.5in; margin-right: 0.5in;">
            <h3 class="title">Note</h3>

            <p>Automatic font generation<a id="id2929960"
            class="indexterm" name="id2929960"></a><a
            id="id2929972" class="indexterm" name="id2929972"></a>
            is not supported by the standard distribution of emTeX.
            You must install the beta test versions to use
            automatic font generation.</p>
          </div>

          <p>The new versions of the emTeX DVI drivers include a
          program called <b>dvidrv</b><a id="id2930004"
          class="indexterm" name="id2930004"></a>, which handles
          automatic font generation. The <b>dvidrv</b> program runs
          the driver and if the driver indicates that fonts are
          missing, gives you the opportunity to use font
          substitution or build new fonts. The <b>MFjob</b> program
          is used to build the fonts. <b>MFjob</b> runs the
          MetaFont and <b>GFtoPK</b> to produce and install the
          necessary fonts. <b>MFjob</b> installs the <tt>PK</tt>
          files into the first directory on the font path.</p>

          <p>The <b>dvidrv</b> program can be replaced by a batch
          file that can select an appropriate font-rendering
          program (something other than MetaFont, for example) to
          build the necessary fonts. This feature is only available
          in the OS/2 versions of emTeX releases 1.4t and later.
          The batch file in Example&#160;<a
          href="apd.html#ex.dvidxx"
          title="Example&#160;D.3.&#160;dvidxx.btm">Example&#160;D.3</a>
          in Appendix&#160;<a href="apd.html"
          title="Appendix&#160;D.&#160;Long Examples">Appendix&#160;D</a>,
          <span class="emphasis"><em><a href="apd.html"
          title="Appendix&#160;D.&#160;Long Examples">Appendix&#160;D</a></em></span>,
          is a replacement for <b>dvidrv</b>. It uses
          <b>ps2pk</b><a id="id2930120" class="indexterm"
          name="id2930120"></a> to make <tt>PK</tt> versions of
          PostScript Type&#160;1 fonts if an appropriate
          <tt>PFB</tt> file can be found. Otherwise, it calls
          <b>MFjob</b> in the same way that <b>dvidrv</b> does.</p>
        </div>

        <div class="section">
          <div class="titlepage">
            <div>
              <h3 class="title"><a id="sec.netemtex"
              name="sec.netemtex"></a>Installing emTeX on a
              Network</h3>
            </div>
          </div>

          <p>Ordinarily, emTeX does not require write access to any
          of its data files, so installation on a network<a
          id="id2930180" class="indexterm" name="id2930180"></a> is
          not a problem. The location of temporary files that must
          be writable is controlled with environment variables. If
          automatic font generation is being used, there are two
          applicable cautions.</p>

          <p>First, if you use the batch file approach to automatic
          font generation in order to support different rendering
          software, be aware that your batch file must handle the
          fact that multiple files may be written to the same
          directory from different users. Don't let filenames
          collide.</p>

          <p>Second, it is ideal if you can provide a single
          world-writable location for automatically generated
          fonts. If multiple users are working with similar
          documents, each will not need private copies of the fonts
          they require. If your networking software tracks the time
          of last file access, you can determine which files to
          delete from this global font area on a regular basis.</p>
        </div>
      </div>

      <div class="section">
        <div class="titlepage">
          <div>
            <h2 class="title" style="clear: both"><a id="id2930222"
            name="id2930222"></a>texas</h2>
          </div>
        </div>

        <p><b>texas</b><a id="id2930235" class="indexterm"
        name="id2930235"></a> is a 32-bit MS-DOS version of TeX. It
        is a big TeX. Unlike <b>tex386</b>, which comes with emTeX,
        the <b>texas</b> executable uses a royalty-free, commercial
        DOS extender. The advantage of this extender is that it can
        run under Windows and other protected-mode environments
        such as DESQview.</p>

        <p>Before you install <b>texas</b>, you should get a
        complete TeX system from some other location (emTeX or
        gTeX, for example). The <b>texas</b> distribution does not
        include anything other than the TeX executable and the
        MS-DOS extender---no format files, no input files,
        nothing.</p>

        <p>The <span class="emphasis"><em>-i</em></span> switch
        runs <b>texas</b> in iniTeX<a id="id2930301"
        class="indexterm" name="id2930301"></a> mode. Using the
        instructions from Chapter&#160;<a href="ch04.html"
        title="Chapter&#160;4.&#160;Macro Packages">Chapter&#160;4</a>,
        <span class="emphasis"><em><a href="ch04.html"
        title="Chapter&#160;4.&#160;Macro Packages">Chapter&#160;4</a></em></span>,
        you should be able to build new format files for use with
        <b>texas</b> if you have another TeX distribution to work
        from.</p>

        <p><b>texas</b> uses the following environment <a
        id="id2930352" class="indexterm" name="id2930352"></a><a
        id="id2930362" class="indexterm" name="id2930362"></a>
        variables:</p>

        <div class="variablelist">
          <dl>
            <dt><span class="term"><tt>TEXINPUTS</tt></span></dt>

            <dd>
              <p><a id="id2930395" class="indexterm"
              name="id2930395"></a>Defines the directories that
              <b>texas</b> uses when searching for TeX input files.
              You would typically leave the defaults in this path
              and extend it with directories of your own in place
              of <tt>C:{\bs}MYTEX</tt>.</p>
            </dd>

            <dt><span class="term"><tt>TEXFORMATS</tt><a
            id="id2930448" class="indexterm"
            name="id2930448"></a></span></dt>

            <dd>
              <p>Specifies where <b>texas</b> looks for format
              files. Typically you would leave this set as is and
              add new format files to that directory.</p>
            </dd>

            <dt><span class="term"><tt>TEXFONTS</tt><a
            id="id2930492" class="indexterm"
            name="id2930492"></a></span></dt>

            <dd>
              <p>TeX uses the directories stored in this variable
              when searching for <tt>TFM</tt> files for fonts used
              in your documents. If you install new fonts, you
              should put the <tt>TFM</tt> files in their own
              directory and add the name of that directory to the
              <tt>TEXFONTS</tt> path.</p>
            </dd>

            <dt><span class="term"><tt>TEXPOOL</tt><a
            id="id2930555" class="indexterm"
            name="id2930555"></a></span></dt>

            <dd>
              <p>Specifies where <b>texas</b> looks for its pool
              file. Unless you have installed <b>texas</b> in an
              unusual way, you will not have to change this
              setting.</p>
            </dd>

            <dt><span class="term"><tt>DOS4GVM</tt><a
            id="id2930602" class="indexterm"
            name="id2930602"></a></span></dt>

            <dd>
              <p><b>texas</b> uses a DOS extender<a id="id2930630"
              class="indexterm" name="id2930630"></a> to overcome
              memory limitations under MS-DOS. If the extender runs
              out of memory, it writes parts of the memory-image
              that it is maintaining out to disk. This environment
              variable specifies where that information should be
              written. You do not usually need to change this
              setting.</p>
            </dd>
          </dl>
        </div>
      </div>

      <div class="section">
        <div class="titlepage">
          <div>
            <h2 class="title" style="clear: both"><a id="id2930652"
            name="id2930652"></a>sbTeX</h2>
          </div>
        </div>

        <p>sbTeX<a id="id2930661" class="indexterm"
        name="id2930661"></a> is another MS-DOS implementation of
        TeX. The <tt>sb38tex</tt><a id="id2930680"
        class="indexterm" name="id2930680"></a> distribution
        includes TeX and iniTeX executables, <tt>TFM</tt> files for
        the Computer Modern Roman fonts, and TeX sources for the
        Plain TeX format. This is TeX version 3.141. You will have
        to get DVI drivers and other TeX tools from a different
        package.</p>

        <p>The <tt>sb32xet</tt><a id="id2930712" class="indexterm"
        name="id2930712"></a> distribution is \XeT version
        3.1.<sup>[<a id="id2930721" name="id2930721"
        href="#ftn.id2930721">125</a>]</sup> The source files for
        the \XeT <tt>nailp</tt> format are included, as well as the
        supporting files for Hebrew.</p>

        <p>The <tt>sbmf13</tt><a id="id2930746" class="indexterm"
        name="id2930746"></a> distribution is MetaFont version
        2.71. Only the sources for the Plain MetaFont base file are
        provided. Like the sbTeX distribution, this is a very
        minimal set of files. Only the <b>GFtoPK</b><a
        id="id2930763" class="indexterm" name="id2930763"></a>
        utility is included; all of the other MetaFont programs you
        need will have to be obtained from another package.</p>

        <p>The default directories for sbTeX are <tt>\bs TEX\bs
        INPUTS</tt> for input files, <tt>\bs TEX\bs FORMATS</tt>
        for format files, and <tt>{\bs TEX\bs FONTTFMS}</tt> for
        <tt>TFM</tt> files. The default drive is C:, but that can
        be changed with the <b>sb38set</b> program.</p>

        <p>You can also modify these paths by setting the
        <tt>TEXINPUTS</tt> environment variable<a id="id2930826"
        class="indexterm" name="id2930826"></a><a id="id2930839"
        class="indexterm" name="id2930839"></a> for input files,
        the <tt>FMTSB</tt> environment variable for format files,
        and the <tt>FONTTFMS</tt> environment variable for
        <tt>TFM</tt> files. Additionally, sbTeX uses the
        <tt>SBFTMP</tt> environment variable to determine where
        temporary files should be located if font caching is
        performed. Here is a more complete description of sbTeX's
        environment variables:</p>

        <div class="variablelist">
          <dl>
            <dt><span class="term"><tt>TEXINPUTS</tt></span></dt>

            <dd>
              <p><a id="id2930903" class="indexterm"
              name="id2930903"></a>Defines the directories that
              sbTeX uses when searching for TeX input files. You
              would typically leave the defaults in this path and
              extend it with directories of your own in place of
              <tt>C:{\bs}MYTEX</tt>.</p>
            </dd>

            <dt><span class="term"><tt>FMTSB</tt><a id="id2930949"
            class="indexterm" name="id2930949"></a></span></dt>

            <dd>
              <p>Specifies where sbTeX looks for format files.
              Typically you would leave this set as it is and add
              new format files to that directory.</p>
            </dd>

            <dt><span class="term"><tt>FONTTFMS</tt><a
            id="id2930987" class="indexterm"
            name="id2930987"></a></span></dt>

            <dd>
              <p>TeX uses the directories stored in this variable
              when searching for <tt>TFM</tt> files for fonts used
              in your documents. If you install new fonts, you
              should put the <tt>TFM</tt> files for these fonts in
              their own directory and add the name of that
              directory to the <tt>FONTTFMS</tt> path.</p>
            </dd>

            <dt><span class="term"><tt>SBFTMP</tt><a id="id2931046"
            class="indexterm" name="id2931046"></a></span></dt>

            <dd>
              <p>When font-caching is enabled, sbTeX writes cached
              information to disk when it runs out of memory. This
              environment variable specifies where that information
              should be written. You do not usually need to change
              this setting.</p>
            </dd>
          </dl>
        </div>
      </div>

      <div class="section">
        <div class="titlepage">
          <div>
            <h2 class="title" style="clear: both"><a id="id2931076"
            name="id2931076"></a>gTeX</h2>
          </div>
        </div>

        <p>The gTeX<a id="id2931085" class="indexterm"
        name="id2931085"></a> package is distributed in two ways.
        One way is intended to supplement (actually, replace part
        of) the emTeX distribution. The advantage of gTeX
        executables over emTeX is that they will run under Windows.
        The 386 versions of emTeX executables will not run under
        Windows. On the other hand, although gTeX will run in an
        MS-DOS session under OS/2, only the emTeX executables will
        actually run in a native OS/2 session. The other
        distribution is a complete set of <tt>TFM</tt> files,
        source, and input files for Plain TeX, LaTeX, and AMSTeX.
        In either distribution, you must get DVI drivers and some
        ancillary programs from another complete package (like
        emTeX).</p>

        <p>The following programs are included in the gTeX
        distribution:</p>
<pre class="screen">
\begin{tabular}{lll}
&amp;BibTeX; &amp; &lt;command&gt;GFtoPK&lt;/command&gt; &amp; &lt;command&gt;VFtoVP&lt;/command&gt; \\
&lt;command&gt;DVItype&lt;/command&gt; &amp; &lt;command&gt;MFT&lt;/command&gt; &amp; &lt;command&gt;VPtoVF&lt;/command&gt; \\
&lt;command&gt;DVIcopy&lt;/command&gt; &amp; &lt;command&gt;PKtoGF&lt;/command&gt; \   &amp; &lt;command&gt;MakeIndx&lt;/command&gt; \\
&lt;command&gt;GFtoDVI&lt;/command&gt; \   &amp; &lt;command&gt;PKtype&lt;/command&gt; &amp; &amp;MF; \\[2pt]
\multicolumn{3}{l}{\program{amSpell}  (a third party spell-checker, not traditionally part of \TeX)}\\[2pt]
\multicolumn{3}{l}{\program{MEwin}  (an Emacs-like editor for Windows, also not traditionally part of \TeX)}\\
\end{tabular}
</pre>

        <p>The gTeX executables use the same environment
        variables<a id="id2931134" class="indexterm"
        name="id2931134"></a><a id="id2931160" class="indexterm"
        name="id2931160"></a> as emTeX.</p>
      </div>

      <div class="footnotes">
        <br />
        <hr width="100" align="left" />

        <div class="footnote">
          <p><sup>[<a id="ftn.id2920364" name="ftn.id2920364"
          href="#id2920364">122</a>]</sup> {Hence the spider on the
          cover, by the way.}</p>
        </div>

        <div class="footnote">
          <p><sup>[<a id="ftn.id2928486" name="ftn.id2928486"
          href="#id2928486">123</a>]</sup> {One of the reasons I
          don't recommend it is that it isn't easy to determine
          precisely what the compiled-in defaults are, and they may
          change without notice.}</p>
        </div>

        <div class="footnote">
          <p><sup>[<a id="ftn.id2929756" name="ftn.id2929756"
          href="#id2929756">124</a>]</sup> {Earlier versions of
          <tt>tex386.exe</tt> had the <tt>emx</tt> extender
          &#8220;bound&#8221; into the executable, which made the
          process more complicated. The <tt>emx</tt> extender had
          to be unbound before the new one could be used.}</p>
        </div>

        <div class="footnote">
          <p><sup>[<a id="ftn.id2930721" name="ftn.id2930721"
          href="#id2930721">125</a>]</sup> {\XeT is a variant of
          TeX that can typeset in both left-to-right and
          right-to-left modes.}</p>
        </div>
      </div>
    </div>

    <div class="navfooter">
      <table width="100%" summary="Navigation table">
        <tr>
          <td width="40%" align="left"><a
          title="Part&#160;III.&#160;A Tools Overview"
          href="pt03.html"><img src="figures/nav-prev.png"
          alt="Prev" border="0" /></a>&#160;</td>

          <td width="20%" align="center"><a title="Making TeX Work"
          href="index.html"><img src="figures/nav-home.png"
          alt="Home" border="0" /></a></td>

          <td width="40%" align="right">&#160;<a
          title="Chapter&#160;14.&#160;Commercial Environments"
          href="ch14.html"><img src="figures/nav-next.png"
          alt="Next" border="0" /></a></td>
        </tr>

        <tr>
          <td width="40%" align="left">Part&#160;III.&#160;A Tools
          Overview&#160;</td>

          <td width="20%" align="center"><a
          title="Part&#160;III.&#160;A Tools Overview"
          href="pt03.html"><img src="figures/nav-up.png" alt="Up"
          border="0" /></a></td>

          <td width="40%" align="right">
          &#160;Chapter&#160;14.&#160;Commercial Environments</td>
        </tr>
      </table>
    </div>
  </body>
</html>