summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/source/latex/chemstyle/chemscheme.dtx
blob: d9a0a2c381dee784cdbbd7a027854408411de8dd (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
% \iffalse meta-comment
%
% Copyright (C) 2007-08 by
%    Joseph Wright <joseph.wright@morningstar2.co.uk>
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3 of this license or (at your option) any later
% version. The latest version of this license is in
%    http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of
% LaTeX version 2003/12/01 or later.
%
% This work has the LPPL maintenance status `maintained.'
%
% The current maintainer of this work is Joseph Wright.
%
% This work consists of the source file chemscheme.dtx and
%                                       chemscheme.cdx
%                 and the derived files chemscheme.ins,
%                                       chemscheme.sty,
%                                       chemscheme.pdf,
%                                       chemscheme-manual.pdf,
%                                       chemscheme-demo.ltx,
%                                       scheme-one.eps,
%                                       scheme-two.eps,
%                                       jawltxdoc.sty and
%
% TDS-ready files:
%    The compressed file chemscheme.tds.zip contains an unpacked
%    version of all of the files included here, and pre-compiled
%    documentation in PDF format.  Simply decompress
%    chemscheme.tds.dtx in your local TeX directory, run your hash
%    program (texhash, initexmf --update-fndb, etc.) and everything
%    will be ready to go.  The user documentation for the package is
%    called chemscheme-manual.pdf; the file chemscheme.pdf includes
%    the user manual and the fully-indexed source code.
%
% Unpacking:
%    (a) If chemscheme.ins is present:
%           tex chemscheme.ins
%    (b) Without chemscheme.ins:
%           tex chemscheme.dtx
%    (c) If you use LaTeX to generate files:
%           latex \let\install=y\input{chemscheme.dtx}
%
% Documentation:
%    (a) Without write18 enabled:
%          latex chemscheme.dtx
%          (Comment out "inactive" line in driver where indicated)
%          latex chemscheme.dtx
%          dvips -o chemscheme-pics.ps chemscheme.dvi
%          ps2pdf chemscheme-pics.ps
%          bibtex8 --wolfgang chemscheme.aux
%          makeindex -s gind.ist chemscheme.idx
%          makeindex -s gglo.ist -o chemscheme.gls  chemscheme.glo
%          pdflatex chemscheme.dtx
%          pdflatex chemscheme.dtx
%    (b) With write18 enabled:
%          latex chemscheme.dtx
%          (Comment out "inactive" line in driver where indicated)
%          latex chemscheme.dtx
%          pdflatex chemscheme.dtx
%          pdflatex chemscheme.dtx
%          pdflatex chemscheme.dtx
%
% Installation:
%     Copy chemscheme.sty and the various .cfg files to a location
%     searched by TeX, and if required by your TeX installation, run
%     the appropriate command to build a hash of files (texhash,
%     initexmf --update-fndb, etc.)
%
% Note:
%     The jawltxdoc.sty file is not needed for installation,
%     only for building the documentation; it may be deleted
%     after producing the documentation (if necessary).
%
%<*ignore>
% This is all taken verbatim from Heiko Oberdiek's packages
\begingroup
  \def\x{LaTeX2e}%
\expandafter\endgroup
\ifcase 0\ifx\install y1\fi\expandafter
         \ifx\csname processbatchFile\endcsname\relax\else1\fi
         \ifx\fmtname\x\else 1\fi\relax
\else\csname fi\endcsname
%</ignore>
%<*install>
\input docstrip.tex
\keepsilent
\askforoverwritefalse
\preamble
 ----------------------------------------------------------------
 The chemstyle bundle --- Schemes and style for chemistry
 Maintained by Joseph Wright
 E-mail: joseph.wright@morningstar2.co.uk
 Released under the LaTeX Project Public License v1.3 or later
 See http://www.latex-project.org/lppl.txt
 ----------------------------------------------------------------

\endpreamble
\Msg{Generating chemscheme files:}
\generate{\file{jawltxdoc.sty}{\from{\jobname.dtx}{jawltxdoc}}
}
\usedir{tex/latex/chemstyle}
\generate{\file{\jobname.sty}{\from{\jobname.dtx}{package}}
}
\usedir{source/latex/chemstyle}
\generate{\file{\jobname.ins}{\from{\jobname.dtx}{install}}
}
\nopreamble
\usedir{doc/latex/chemstyle}
\generate{\file{\jobname.bib}{\from{\jobname.dtx}{refs}}
}
\nopreamble\nopostamble
\usedir{doc/latex/chemstyle}
\generate{\file{scheme-one.eps}{\from{\jobname.dtx}{scheme}}
          \file{scheme-two.eps}{\from{\jobname.dtx}{scheme,labels}}
          \file{chemscheme-demo.ltx}{\from{\jobname.dtx}{demo}}
}
\endbatchfile
%</install>
%<*ignore>
\fi
% Will Robertson's trick
\immediate\write18{bibtex8 --wolfgang \jobname}
\immediate\write18{makeindex -s gind.ist -o \jobname.ind  \jobname.idx}
\immediate\write18{makeindex -s gglo.ist -o \jobname.gls  \jobname.glo}
\immediate\write18{dvips -o \jobname-pics.ps \jobname.dvi}
\immediate\write18{ps2pdf \jobname-pics.ps}
%</ignore>
%<*driver>
\PassOptionsToClass{a4paper}{article}
\documentclass[german,english,UKenglish]{ltxdoc}
\EnableCrossrefs
\CodelineIndex
\RecordChanges
%\OnlyDescription
\usepackage{jawltxdoc}
% A bit of one-off trickery for this package
% Use the method described in the documentation if you
% want to compile this DTX using PDFLaTeX
\usepackage[final
% Comment out the next line when using PDFLaTeX after the initial
% LaTeX run!
%  ,inactive
  ]{pst-pdf}
\begin{document}
  \DocInput{\jobname.dtx}
\end{document}
%</driver>
% \fi
%
%\CheckSum{404}
%
% \CharacterTable
%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%   Digits        \0\1\2\3\4\5\6\7\8\9
%   Exclamation   \!     Double quote  \"     Hash (number) \#
%   Dollar        \$     Percent       \%     Ampersand     \&
%   Acute accent  \'     Left paren    \(     Right paren   \)
%   Asterisk      \*     Plus          \+     Comma         \,
%   Minus         \-     Point         \.     Solidus       \/
%   Colon         \:     Semicolon     \;     Less than     \<
%   Equals        \=     Greater than  \>     Question mark \?
%   Commercial at \@     Left bracket  \[     Backslash     \\
%   Right bracket \]     Circumflex    \^     Underscore    \_
%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%   Right brace   \}     Tilde         \~}
%
% \GetFileInfo{\jobname.sty}
%
% \changes{v1.0}{2007/07/21}{Initial public release}
% \changes{v1.1}{2007/08/05}{Added float centring code}
% \changes{v1.2}{2007/08/18}{Removed \texttt{chapter} option}
% \changes{v1.2}{2007/08/18}{Improved emulation of standard float
%   types}
%\changes{v1.2a}{2007/09/19}{License changed from GPL to LPPL}
%\changes{v1.2a}{2007/09/19}{Documentation for PDF use added}
%\changes{v1.3}{2007/10/04}{Improved French and German
%  \texttt{babel} support}
%\changes{v1.4}{2008/06/24}{Added support for \pkg{floatrow}}
%
%\setkeys{lst}{language=[LaTeX]{TeX},moretexcs={}}
%
%\DoNotIndex{\@arabic,\@chapter,\@ifclassloaded,\@ifnextchar}
%\DoNotIndex{\@ifpackageloaded,\@ifundefined,\@ne,\@tempa,\@tempb}
%\DoNotIndex{\@undefined,\‘,\addto,\addtocontents,\addtodef}
%\DoNotIndex{\addvspace,\advance,\AtBeginDocument,\backmatter}
%\DoNotIndex{\begin,\c@chapter,\caption,\captionsfrench}
%\DoNotIndex{\captionsfrenchb,\captionsgerman,\captionsngerman}
%\DoNotIndex{\centering,\cftsetindents,\CNlabel,\CNlabelsub}
%\DoNotIndex{\compound,\counterwithin,\counterwithout,\csname}
%\DoNotIndex{\DeclareNewFloatType,\DeclareVoidOption,\def}
%\DoNotIndex{\define@key,\documentclass,\edef,\else,\end,\endcsname}
%\DoNotIndex{\expandafter,\FB@makecaption,\fi,\floatname,\floatsetup}
%\DoNotIndex{\ifartopt,\IfLanguageName,\ifnum,\ifx,\includegraphics}
%\DoNotIndex{\insertchapterspace,\kill@lastcounter,\label}
%\DoNotIndex{\languagename,\let,\listof,\lowercase,\MessageBreak}
%\DoNotIndex{\NeedsTeXFormat,\newcommand,\newcount,\newcounter}
%\DoNotIndex{\newfloat,\newif,\newlistentry,\newlistof,\p@}
%\DoNotIndex{\PackageError,\PackageInfo,\PackageWarning}
%\DoNotIndex{\ProcessKeyvalOptions,\protect,\ProvidesPackage}
%\DoNotIndex{\psfrag,\raggedleft,\relax,\renewcommand}
%\DoNotIndex{\RequirePackage,\scshape,\selectlanguage,\setcounter}
%\DoNotIndex{\SetupKeyvalOptions,\space,\string,\textsf,\the}
%\DoNotIndex{\thechapter,\usepackage,\z@}
%
% \title{\texttt{chemscheme} --- Support for chemical schemes%
%   \thanks{This file describes version \fileversion, last revised
%           \filedate.}}
% \author{Joseph Wright%
%   \thanks{E-mail: joseph.wright@morningstar2.co.uk}}
% \date{Released \filedate}
%
% \maketitle
%
%\newcommand*{\flttype}[1]{\texttt{#1}}
%\begin{abstract}
% The \currpkg package consists of two parts, both related to
% chemical schemes.  The package adds a \flttype{scheme} float type
% to the \LaTeX\ default types \flttype{figure} and \flttype{table}.
% The \flttype{scheme} float type acts in the same way as those
% defined by the \LaTeX\ kernel,  but is intended for chemical
% schemes.  The package also provides a method for adding automatic
% chemical numbering to schemes.
%\end{abstract}
%
%\begin{multicols}{2}
%\tableofcontents
%\end{multicols}
%
%\section{Introduction}
% By default, \LaTeX\ defines two float types, \flttype{figure} and
% \flttype{table}. Synthetic chemists make heavy use of schemes,
% which need a \flttype{scheme} float type.  This is provided by
% \currpkg, in a manner consistent with the kernel floats.
%
% Synthetic chemists also number compounds for ease of reference.
% There are a number of \LaTeX\ packages which cover this area, most
% notably \pkg{bpchem} and \pkg{chemcompounds}.  However, adding
% numbers automatically to schemes is not covered by any existing
% package. The \currpkg package seeks to rectify this.
%\floatcontentscentre
%
%\section{Floating schemes}
%\subsection{Basic use}
%\DescribeEnv{scheme}
% The package provides a new float type, scheme, accessed in the
% usual way.
%\begin{LaTeXexample}[float]
%  \begin{scheme}[ht]
%    \includegraphics{scheme-one}
%    \caption{A scheme with no compound numbers.}
%  \end{scheme}
%\end{LaTeXexample}
% The \flttype{scheme} float is designed to behave in the same way as
% the standard \LaTeX\ float environments \flttype{figure} and
% \flttype{table}.  Thus schemes will be placed at the top of a page,
% where possible. As shown in the example, the use of positional
% modifiers is allowed. Labelling and referencing schemes also
% follows the \LaTeX\ conventions.  \currpkg works hard to emulate
% the document class in use, and so the exact behaviour will depend
% on whether the standard classes, \textsc{koma}-Script or
% \pkg{memoir} are being used.
%
%\DescribeMacro{\listofschemes}
%\DescribeMacro{\listschemename}
% To match the \cs{listoffigures} and \cs{listoftables} macros
% provided by the \LaTeX\ kernel, \currpkg provides a
% \cs{listofschemes} command.  This works in the same way as the
% kernel commands, with the default text stored in the macro
% \cs{listschemename}.  Users upgrading from version 1.1 should note
% the change of macro name (from \cs{listscheme}).  This is to bring
% \currpkg into line with the \LaTeX\ kernel naming convention.  Also
% notice that \cs{listofschemes} no longer accepts an optional
% argument.  The standard output is illustrated below.
%\begin{LaTeXexample}[resultonly]
%  \listofschemes
%\end{LaTeXexample}
%
%\subsection{Altering the defaults}
%\DescribeOption{floats}
% There are a number of methods available to generate new float
% types. The \pkg{memoir} class can do this internally, or the
% \pkg{float} or \pkg{floatrow} packages can be loaded to provide the
% necessary system.  When \pkg{memoir} is used, \currpkg uses the
% internal systems for generating new floats; for the standard
% classes, \pkg{floatrow} is used by default.  The \opt{floats}
% package option can be used to control which method is employed.
% This uses the key--value system, can can be given the values
% \opt{float}, \opt{floatrow} or \opt{memoir}:
%\begin{LaTeXexample}[noexample]
%  \usepackage[floats=float]{chemscheme}
%\end{LaTeXexample}
% or
%\begin{LaTeXexample}[noexample]
%  \usepackage[floats=floatrow]{chemscheme}
%\end{LaTeXexample}
% or
%\begin{LaTeXexample}[noexample]
%  \usepackage[floats=memoir]{chemescheme}
%\end{LaTeXexample}
% The package will use the specified method if available (so
% \opt{memoir} only works if using the \pkg{memoir} class!). If
% either \pkg{float} or \pkg{floatrow} is loaded before \currpkg,
% this forces the choice.
%
%\DescribeMacro{\schemename}
% \cs{schemename} contains the text used in scheme captions (by
% default \schemename).  This is used in the same manner as
% \cs{figurename} or \cs{tablename} to set up the text used in scheme
% captions.
%\begin{LaTeXexample}[float]
%  \renewcommand*{\schemename}{Illustration}
%  \begin{scheme}[ht]
%    \includegraphics{scheme-one}
%    \caption{A scheme that is not a Scheme!}
%  \end{scheme}
%\end{LaTeXexample}
%
%
%\subsection{\pkg{babel} support}
% Schemes are provided with some support for \pkg{babel}.  Currently,
% in addition to English, \currpkg provides alternatives for
% \cs{schemename} and \cs{listschemename} in French and German. Users
% of other languages are encouraged to supply suitable translations
% for inclusion in future versions of \currpkg.
%
%\section{Horizontal positioning of all floats}
%\DescribeMacro{\floatcontentscentre}
%\DescribeMacro{\floatcontentscenter}
%\DescribeMacro{\floatcontentsleft}
%\DescribeMacro{\floatcontentsright}
% The \LaTeX\ default is to position all float contents flush-left.
% There is no ``hook'' provided to alter this.  The \currpkg packages
% therefore provides commands to align all float contents
% automatically.  As the macro names make clear,
% \cs{floatcontentscentre} will make all floats centred (for users
% speaking U.S.~English, the alternative spelling
% \cs{floatcontentscenter} is also available).  The default behaviour
% is restored using the command \cs{floatcontentsleft}. Finally,
% \cs{floatcontentsright} is provided  for use if needed. Notice that
% the float positioning commands should be given \emph{outside}
% floating environments, and apply to all subsequent floats.
%\begin{LaTeXexample}[float]
%  \floatcontentsleft
%  \begin{scheme}[ht]
%    \includegraphics{scheme-one}
%    \caption{A flush-left scheme.}
%  \end{scheme}
%  \floatcontentsright
%  \begin{scheme}[ht]
%    \includegraphics{scheme-one}
%    \caption{A flush-right scheme.}
%  \end{scheme}
%  \floatcontentscentre
%\end{LaTeXexample}
%
% It is important to note that the positioning mechanism used here
% relies on a low-level hack of the \LaTeX\ kernel.  This has been
% tested with the standard \LaTeX\ classes, the \pkg{memoir} class
% and the \textsc{koma}-Script bundled.  Other document classes may
% not give the desired behaviour.
%
%\section{Reference numbers in graphics}
%\subsection{Background}
% There are a number of packages available on \CTAN\ for tracking
% compound reference numbers.  The two with the most up to date and
% comprehensive features are \pkg{bpchem} and \pkg{chemcompounds}.
% Both allow in-text numbering to be handled automatically.  However,
% neither will allow the use of these numbers directly in schemes,
% figures, \etc.  Both leave it to the user to manually adapt schemes
% to match any changes in numbering.
%
% The \currpkg package provides a mechanism for rectifying this
% issue.  The package makes use of the \pkg{psfrag} package, which
% means that it can only directly produce DVI output (using \LaTeX).
% However, direct PDF output using PDF\LaTeX\ is possible: see
% Section~\ref{subsec:pdf}.
%
%\DescribeMacro{\chemschemeref}
%\DescribeMacro{\chemschemerefsub}
% Users upgrading from v1.2 should note that ``\texttt{chem}'' has
% been removed from the start of most macro names.  The main
% referencing commands \cs{chemschemeref} and \cs{chemschemerefsub}
% are retained for backward compatibility.
%
%\subsection{Usage}
% Getting automated numbers into schemes is a two step procedure. In
% the first step, schemes (or other graphics) should be prepared as
% normal and saved as encapsulated postscript (EPS) files The most
% popular chemistry drawing package, \textsc{ChemDraw}, is able to do
% this from the \texttt{Save As \ldots} dialog.
%\DescribeMacro{\schemerefmarker}
% The positions where the auto-labels should be have to be marked in
% the EPS file. The marker should consist of an ``indicator'' that
% the text is to be replaced, followed by a reference number or
% letter.  For automated substitution, the ``indicator'' text should
% be the same in all graphics; the value it is stored in
% \cs{schemerefmarker}, and has default value
% \textsf{\schemerefmarker}.  Thus the graphics should contain labels
% \textsf{\schemerefmarker1}, \textsf{\schemerefmarker2}, \etc. A
% suitable unmodified graphic is shown in in the next example.
%\begin{LaTeXexample}[float]
%  \begin{scheme}[ht]
%    \includegraphics{scheme-two}
%    \caption{A scheme with temporary compound numbers.}
%  \end{scheme}
%\end{LaTeXexample}
% The value of \cs{schemerefmarker} may be altered as normal,
% so for example to use \textsf{XXX} as the indicator for
% replacement in all graphics, you would execute:
%\begin{LaTeXexample}[noexample]
%  \renewcommand*{\chemeschemerefmarker}{XXX}
%\end{LaTeXexample}
%
%\DescribeMacro{\schemeref}
% In the second step, the command \cs{schemeref} is used to indicate
% the mapping of the temporary markers to the automatically-managed
% numbering. The syntax of the command is
% \cs{chemschemeref}\oarg{temp-marker}\marg{label}, where
% \meta{temp-marker} is the marker used in the graphic, and
% \meta{label} is the name assigned to the compound by the user. By
% default, \currpkg will assume that \meta{temp-marker} consists of
% the marker plus a number, beginning at 1 and incrementing by 1 for
% each additional structure inside one float. Each replacement
% requires a separate \cs{chemschemeref}, all of which should appear
% before the relevant \cs{includegraphics} command.
%
% An example will make usage clearer. In the example used in this
% document, the starting material is given label \texttt{IMesHCl} and
% the product is called \texttt{IMes}.  As is shown in the next
% example, in the EPS file these are labelled \textsf{TMP1} and
% \textsf{TMP2}, respectively. The automated package defaults are
% used.
%\begin{LaTeXexample}[float]
%  \begin{scheme}[ht]
%    \schemeref{IMesHCl}
%    \schemeref{IMes}
%    \includegraphics{scheme-two}
%    \caption{A scheme with automated compound numbers.}
%  \end{scheme}
%\end{LaTeXexample}
% With user-specified information on the text to be replaced, the
% entire text to be matched must be given.\footnote{In this example,
% this is redundant as the automated system will work fine.}
%\begin{LaTeXexample}[float]
%  \begin{scheme}[ht]
%    \schemeref[TMP1]{IMesHCl}
%    \schemeref[TMP2]{IMes}
%    \includegraphics{scheme-two}
%    \caption{A scheme with explicitly numbered temporary labels.}
%  \end{scheme}
%\end{LaTeXexample}
% Notice that the new label is centred on the middle of the temporary
% marker, with the same baseline.  This should allow the user to
% obtain good alignment of labels and structures.
%
%\DescribeMacro{\schemerefsub}
% As described in Section~\ref{packages}, \currpkg supports
% \pkg{bpchem}, which allows tracking of sub-labels (\textbf{1a},
% \textbf{1b}, \etc).  To allow use of these in schemes, the
% \cs{schemerefsub} command is provided.  This takes an additional
% argument \marg{sub-label}, which is used to generate the
% appropriate text.  When used with \pkg{chemcompounds}, this command
% will gobble its arguments and issue a warning; no substitution will
% take place.
%
%\DescribeMacro{\schemerefformat}
% The format of chemical references is controlled by the underlying
% package, \pkg{bpchem} or \pkg{chemcompounds}.  However, it is
% useful to be able to specify additional formatting for schemes.  By
% default, \currpkg formats all reference numbers in a sans serif
% font. This is controlled by \cs{schemerefformat}.
%\begin{LaTeXexample}[float]
%  % This needs the color or xcolor package loaded
%  \renewcommand*{\schemerefformat}
%    {\color{magenta}\textit}
%  \begin{scheme}[ht]
%    \schemeref{IMesHCl}
%    \schemeref{IMes}
%    \includegraphics{scheme-two}
%    \caption{A scheme with altered label formatting.}
%  \end{scheme}
%\end{LaTeXexample}
% The additional formatting applied within schemes may be altered by
% redefining \cs{schemerefformat}.  By careful choice of the
% font commands given here, good visual matching should be obtained
% between the automatically-generated labels and other text in the
% scheme.  In this document, the \textsc{ChemDraw} source uses 10
% point Arial, with the \LaTeX\ sans serif font provided by the
% \pkg{helvet} package, loaded scaled to 95\,\%, \ie:
%\begin{LaTeXexample}[noexample]
%  \usepackage[scaled=0.95]{helvet}
%\end{LaTeXexample}
% The \textsc{ChemDraw} file used to generate the example schemes is
% included with the package as \file{chemscheme.cdx}.
%
%\iffalse
%<*demo>
%\fi
%\subsection{\currpkg and
%  \texorpdfstring{PDF\LaTeX}{PDFLaTeX}\label{subsec:pdf}}
% The automatic substitution of numbers in graphics relies on the the
% \pkg{psfrag} package.  This works with \textsc{PostScript} files,
% and cannot therefore be used with PDF\LaTeX.  However, all is not
% lost as the \pkg{pst-pdf} package provides a method for including
% \textsc{PostScript} files in a PDF\LaTeX\ run.  However, this is
% not automatic and some effort is needed by the user.\footnote{The
% rest of this section is based closely on an example by Stefan
% Pinnow.} The example below shows a example for using PDF\LaTeX\
% with \currpkg.
%    \begin{macrocode}
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{graphicx,chemscheme}
% Remove `inactive' after the first LaTeX run
\usepackage[inactive,final]{pst-pdf}
\begin{document}
\floatcontentscentre
An example file for PDFLaTeX use.
\begin{scheme}
  \schemeref{IMesHCl}
  \schemeref{IMes}
  \includegraphics{scheme-two}
  \caption{A scheme with automated compound numbers.}
  \label{sc:scheme-one}
\end{scheme}
\end{document}
%    \end{macrocode}
%\iffalse
%</demo>
%\fi
%
% First you need to run the file through \LaTeX, so your package can
% make the replacements in the picture. Then you need another run
% through \LaTeX\ with the \opt{inactive} option \pkg{pst-pdf}
% removed so that the modified pictures are extracted.\footnote{You
% can simply do the first \LaTeX\ run without loading \pkg{pst-pdf}
% at all, if you prefer.}  Do not worry that you end up with a very
% odd looking DVI! Then you have to convert the extracted pictures to
% PDF by the following commands
%\begin{verbatim}
%  dvips -o \jobname-pics.ps \jobname.dvi
%  ps2pdf \jobname-pics.ps
%\end{verbatim}
% This converts the modified graphics into PDF format. After this,
% you can use PDF\LaTeX\ as normal for your schemes. Notice that you
% will have to repeat the process if you need to modify the schemes
% or numbering in any way.
%
%\subsection{Managing chemical numbering\label{packages}}
%\DescribeOption{bpchem}
%\DescribeOption{chemcompounds}
%\DescribeOption{tracking}
% The \currpkg package can use one of two packages for management of
% chemical numbering: \pkg{bpchem} and \pkg{chemcompounds}. As of
% v1.3, \pkg{chemcompounds} is the default package for managing
% reference numbers.\footnote{The change from \pkg{bpchem} is due to
% issues with \pkg{hyperref} support.  The method used by
% \pkg{bpchem} to generate compound labels means that they are made
% into hyperlinks by \pkg{hyperref}, and therefore end up coloured
% when using the \opt{colorlinks} option.  This is unlikely to be the
% desired effect, and \pkg{chemcompounds} does not behave in this
% way.} Both packages have advantages: \pkg{bpchem} allows the
% tracking of sub-references (very common in organic chemistry),
% whilst \pkg{chemcompounds} has a very well thought-out interface.
% It is technically feasible to support both simultaneously, but this
% is unlikely to have wide application. For this reason, \currpkg
% loads only one package, and uses this package to provide numbering
% management.  The \currpkg package recognises the \opt{bpchem} and
% \opt{chemcompounds} to control this; the key--value version
% \opt{tracking=\ldots} can also be given.
%
%\section{Generating chemical schemes}
%
%\subsection{Overview}
% There are a number of ways of generating the graphical content of
% schemes.  The choice of method will depend on what is available to
% the user, and how complex the schemes desired are. In this section,
% an overview of several approaches is given.\footnote{Thanks to
% Norwid-R.\ Behrnd for suggesting this section and giving a number
% of useful examples and tips.}  The package author, who is a
% research worker in a university, favours using \textsc{ChemDraw} as
% it is regarded by many synthetic chemists as the best tool for this
% job.  However, this is clearly overkill for users requiring a
% single diagram on a one-off basis. \textsc{ChemDraw} is also a
% commercial package running only under Windows and the MacOS. The
% following is necessarily somewhat brief and selective.  For a
% thorough overview of graphics in \LaTeX, see Goossens
% \etal~\cite{Goossens2007}.
%
%\subsection{Macro-based methods}
% At the most basic, a chemical scheme is simply a collection of
% lines and symbols, as with any vector diagram.  Hence, it is
% possible to construct schemes directly using packages such as
% PSTricks or \pkg{pgf}/Ti\emph{k}z.  This is a complex method, and
% cannot be recommended for anyone except the very experienced and
% brave.
%
% At a more practical level, there are two packages available which
% allow typesetting of chemical structures in (La)\TeX, using
% specialised commands: XyM\TeX\ and ppch\TeX.  Recent versions of
% the XyM\TeX\ package have not been made available on \CTAN, and the
% version held there is therefore considered to be obsolete.  On the
% other hand, the ppch\TeX\ system, developed originally for
% Con\TeX{}t, is available. Both systems suffer from the lack of
% chemical logic in the input: it is very hard to tell from the code
% what is being represented. Drawing items such as ``curly arrows'',
% or making subtle alterations to positioning, is very challenging in
% purely macro-based systems.  For these reasons, it is usually much
% more sensible to examine the available graphical methods.
%
%\subsection{Graphical methods}
% Moving to graphical systems, there is no reason that
% general-purpose vector drawing packages cannot be used for schemes.
% There are obviously several commercial (\textsc{CorelDraw},
% \textsc{Adobe Illustrator}, \etc) and freeware (for example
% the \textsc{gimp}) drawing packages that can be used in this way.
% Simply rings and lines can easily be constructed, although in
% general-purpose programs the user has to watch that all bonds
% are the same length.
%
% For producing a large number of complex schemes, the particular
% abilities of dedicated software become a necessity. As well as the
% already-mentioned \textsc{ChemDraw}, programs such as \textsc{ISIS
% Draw} and \textsc{ChemSketch} are available free for personal
% use;\footnote{``Free'' as in without charge, not as in open
% source.} these programs are all Windows specific.  In the
% open-source arena, there are a number of packages such as
% \textsc{XDrawChem} and \textsc{BKchem}, which offer cross-platform
% functionality.  The differences between the various packages are in
% the ease of use, and ability to generate well-formattd output (for
% example, aligning structures).
%
% One which deserves mention for the \TeX\ user is TpX.  This is a
% general purpose Windows graphics program specifically aimed at
% producing \TeX-friendly output (such as PSTricks and \pkg{tikz}
% code) from a graphical interface. TpX can accept clipboard data
% from other programs, so can be used to produce EPS files from
% programs which do not have native export facilities (such as
% \textsc{ISIS Draw}).
%
%\section{Known issues}
%
% The interaction of the different document classes, with options,
% plus the \pkg{babel} system means ensuring every possibility is
% covered is impossible.  Users are asked to report any problems with
% compatibility with other packages or emulation of the standard
% float types.  Additional \pkg{babel} stings are also welcome, as
% are improvements to those already provided.
%
% \StopEventually{\bibliographystyle{unsrt}\bibliography{chemscheme}}
%
% \iffalse
%<*package>
% \fi
%
% \section{Implementation}
%
% \subsection{Setup code}
%\begin{macro}{\csh@id}
% The initial code goes through the usual steps of identifying the
% package.
%    \begin{macrocode}
\NeedsTeXFormat{LaTeX2e}
\def\csh@id$#1: #2.#3 #4 #5-#6-#7 #8 #9${%
    #5/#6/#7\space v1.4\space}
\ProvidesPackage{chemscheme}
  [\csh@id $Id: chemscheme.dtx 36 2008-07-17 07:39:53Z joseph $
   Support for chemical schemes]
%    \end{macrocode}
%\end{macro}
%\changes{v1.4}{2008/06/19}{Option handling completely re-written}
%\begin{macro}{\ifcsh@bpchem}
% Package options are handled using the key--value method, with
% \pkg{kvoptions} providing the back-end.  Most of the code here is
% pretty basic; the aim is to set up the correct handling of
% float-creation and compound tracking.
%    \begin{macrocode}
\RequirePackage{kvoptions,psfrag,iflang}
\SetupKeyvalOptions{
  family=csh,
  prefix=csh@}
\newif\ifcsh@bpchem
\define@key{csh}{tracking}
  {\csh@bpchemtrue
   \lowercase{\edef\@tempa{#1}}%
   \def\@tempb{bpchem}%
   \ifx\@tempa\@tempb\else
     \def\@tempb{chemcompounds}%
     \ifx\@tempa\@tempb
       \csh@bpchemfalse
     \else
       \PackageError{chemscheme}
         {Unknown value `#1' for option numbers}
         {The `tracking' option accepts values `bpchem'
          and `chemcompounds'}%
     \fi
   \fi}
\DeclareVoidOption{chemcompounds}{\csh@bpchemfalse}
\DeclareVoidOption{bpchem}{\csh@bpchemtrue}
\DeclareVoidOption{chapter}
  {\PackageInfo{chemscheme}
    {Ignoring obsolete option `chapter'}}
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\csh@fltpkg}
% The provision of floats can be handled by \pkg{floatrow},
% \pkg{float} or \pkg{memoir}.  The user is given an option, but if
% one of the packages is already loaded then this has to be taken
% into account.
%    \begin{macrocode}
\define@key{csh}{floats}
  {\lowercase{\renewcommand*{\csh@fltpkg}{#1}}%
   \def\@tempa{floatrow}%
   \ifx\csh@fltpkg\@tempa\else
     \def\@tempa{float}%
     \ifx\csh@fltpkg\@tempa\else
       \def\@tempa{memoir}%
       \ifx\csh@fltpkg\@tempa
         \@ifclassloaded{memoir}{}
           {\PackageWarning{chemscheme}
            {You asked for floats to be created using memoir,
             \MessageBreak but have used a different document
             class\MessageBreak Using floatrow instead}%
            \renewcommand*{\csh@fltpkg}{floatrow}}%
       \else
         \PackageError{chemscheme}
           {Unknown value `#1' for option numbers}
           {The `floats' option accepts values `float',
            `floatrow' and `memoir'}%
       \fi
     \fi
   \fi}
\@ifpackageloaded{floatrow}
  {\newcommand*{\csh@fltpkg}{floatrow}%
   \define@key{csh}{floats}
     {\PackageInfo{chemscheme}{Package floatrow already
      loaded\MessageBreak Option `floats' disabled}}}
  {\@ifpackageloaded{float}
     {\newcommand*{\csh@fltpkg}{float}%
      \define@key{csh}{floats}
        {\PackageInfo{chemscheme}{Package float already
         loaded\MessageBreak Option `floats' disabled}}}
     {\@ifclassloaded{memoir}
        {\newcommand*{\csh@fltpkg}{memoir}}
        {\newcommand*{\csh@fltpkg}{floatrow}}}}
\ProcessKeyvalOptions{csh}
%    \end{macrocode}
%\end{macro}
%\changes{v1.4}{2008/06/20}{Float creation rewritten}
%\begin{macro}{\csh@load@memoir}
%\begin{macro}{\csh@load@float}
%\begin{macro}{\csh@load@floatrow}
% The necessary support is loaded by using an appropriately-named
% macro.  For \pkg{memoir}, nothing actually has to be done.
%    \begin{macrocode}
\newcommand*{\csh@load@memoir}{}
\newcommand*{\csh@load@float}{%
  \@ifpackageloaded{float}{}
    {\let\newfloat\@undefined}
  \RequirePackage{float,caption}}
\newcommand*{\csh@load@floatrow}{%
  \@ifpackageloaded{floatrow}{}
    {\let\newfloat\@undefined}
  \RequirePackage{floatrow,caption}}
\csname csh@load@\csh@fltpkg\endcsname
%    \end{macrocode}
%\end{macro}
%\end{macro}
%\end{macro}
%
%\subsection{Support for schemes}
%\begin{macro}{\schemename}
%\begin{macro}{\listschemename}
%\changes{v1.2}{2007/08/18}{Replaces \cs{listschemes}}
% The default name for a scheme, and the default title for the list
% of schemes, are provided.  Both command names follow the kernel
% conventions for figures and tables; unlike the kernel versions,
% however, these macros are not \cs{long}.
%    \begin{macrocode}
\newcommand*{\schemename}{Scheme}
\newcommand*{\listschemename}{List of Schemes}
%    \end{macrocode}
%\end{macro}
%\end{macro}
%\begin{environment}{scheme}
%\begin{macro}{\listofschemes}
%\begin{macro}{\csh@makesch@memoir}
%\begin{macro}{\csh@mksch@memoir}
%\begin{macro}{\csh@makesch@float}
%\begin{macro}{\csh@mksch@float}
%\begin{macro}{\csh@makesch@floatrow}
% As with package loading, three different macros are defined here to
% create the new float type.  As well as the basics of creating the
% float, some work is needed as adjustments must be made to match the
% style of the kernel floats.  For the \pkg{floatrow} package, things
% have to be done in the preamble, whereas for the others everything
% happens later.
%    \begin{macrocode}
\newcommand*{\csh@makesch@memoir}{%
  \AtBeginDocument{\csh@mksch@memoir}}
\newcommand*{\csh@mksch@memoir}{%
  \newfloat[chapter]{scheme}{los}{\schemename}
  \kill@lastcounter{losdepth}
  \renewcommand*{\thescheme}{\thechapter.\@arabic\c@scheme}
  \addtodef{\@smemfront}{}{\counterwithout{scheme}{chapter}}
  \addtodef{\@smemmain}{}{%
    \ifartopt\else
      \counterwithin{scheme}{chapter}
    \fi}
  \addtodef{\backmatter}{}{%
    \ifartopt\else
      \counterwithout{scheme}{chapter}%
      \setcounter{scheme}{0}%
    \fi}
  \ifartopt
    \counterwithout{scheme}{chapter}%
  \fi
  \newlistof{listofschemes}{los}{\listschemename}
  \kill@lastcounter{losdepth}
  \newlistentry[chapter]{scheme}{los}{0}
  \cftsetindents{scheme}{0em}{2.3em}
  \addtodef{\insertchapterspace}{}%
    {\addtocontents{los}{\protect\addvspace{10pt}}}
  \@ifundefined{c@losdepth}%
    {\newcounter{losdepth}\setcounter{losdepth}{1}}{}}
\newcommand*{\csh@makesch@float}{%
  \AtBeginDocument{\csh@mksch@float}}
\newcommand*{\csh@mksch@float}{%
  \@ifundefined{chapter}
    {\newfloat{scheme}{tbp}{los}}
    {\newfloat{scheme}{tbp}{los}[chapter]%
     \csh@fixchapter}%
  \floatname{scheme}{\schemename}
  \newcommand*{\listofschemes}{%
    \listof{scheme}{\listschemename}}}
\newcommand*{\csh@makesch@floatrow}{%
  \DeclareNewFloatType{scheme}
    {fileext=los,placement=tbp,name=Scheme}
  \@ifundefined{chapter}{}
    {\floatsetup[scheme]{within=chapter}%
     \csh@fixchapter}%
  \newcommand*{\listofschemes}{%
    \listof{scheme}{\listschemename}}}
%    \end{macrocode}
%\end{macro}
%\end{macro}
%\end{macro}
%\end{macro}
%\end{macro}
%\begin{macro}{\csh@fixchapter}
%\begin{macro}{\csh@chapter}
%\begin{macro}{\@chapter}
% When not using \pkg{memoir}, chapters may or may not be defined.
% This means a little extra work.
%    \begin{macrocode}
\newcommand*{\csh@fixchapter}{%
  \@ifundefined{KOMAScriptVersion}
    {\renewcommand*{\thescheme}{%
       \ifnum\c@chapter>\z@ \thechapter.\fi \@arabic\c@scheme}}
    {}%
    \let\csh@chapter\@chapter
    \renewcommand{\@chapter}{%
      \addtocontents{los}{\protect\addvspace{10\p@}}%
      \csh@chapter}}
%    \end{macrocode}
%\end{macro}
%\end{macro}
%\end{macro}
% The appropriate creation macro is now called.
%    \begin{macrocode}
\csname csh@makesch@\csh@fltpkg\endcsname
%    \end{macrocode}
%\end{macro}
%\end{environment}
%
%\subsection{Positioning float contents}
%\begin{macro}{\floatcontentscentre}
%\begin{macro}{\floatcontentscenter}
%\begin{macro}{\floatcontentsleft}
%\begin{macro}{\floatcontentsright}
% When using \pkg{floatrow}, centring all floats is easy.  This is
% not the case for other methods, and so some macros are provided.
% The definitions depend on whether \pkg{floatrow} is in use.
%    \begin{macrocode}
\def\@tempa{floatrow}
\ifx\@tempa\csh@fltpkg
  \newcommand*{\floatcontentscentre}{%
    \floatsetup{objectset=centering}}
  \newcommand*{\floatcontentscenter}{%
    \floatsetup{objectset=centering}}
  \newcommand*{\floatcontentsright}{%
    \floatsetup{objectset=raggedleft}}
  \newcommand*{\floatcontentsleft}{%
    \floatsetup{objectset=raggedright}}
%    \end{macrocode}
%\begin{macro}{\csh@floatboxreset}
%\begin{macro}{\@floatboxreset}
%\begin{macro}{\csh@everyfloat}
% When \pkg{floatrow} is not in use, then a low-level hack of
% \cs{@floatboxtreset} is used.
%    \begin{macrocode}
\else
  \let\csh@floatboxreset\@floatboxreset
  \renewcommand*{\@floatboxreset}{%
    \csh@everyfloat
    \csh@floatboxreset}
  \newcommand*{\floatcontentscentre}{%
    \let\csh@everyfloat\centering}
  \newcommand*{\floatcontentscenter}{%
    \let\csh@everyfloat\centering}
  \newcommand*{\floatcontentsleft}{%
    \let\csh@everyfloat\relax}
  \newcommand*{\floatcontentsright}{%
    \let\csh@everyfloat\raggedleft}
\fi
\floatcontentsleft
%    \end{macrocode}
%\end{macro}
%\end{macro}
%\end{macro}
%\end{macro}
%\end{macro}
%\end{macro}
%\end{macro}
%
%\subsection{\pkg{babel} support}
%\begin{macro}{\ifcsh@babel}
% To make the new float type work with \pkg{babel}, some alternative
% text is provided for non-English users.  First, we need to know if
% \pkg{babel} is loaded \emph{before} \currpkg or after, as this
% affects one if the hacks needed for French.
%    \begin{macrocode}
\newif\ifcsh@babel
\@ifpackageloaded{babel}
  {\csh@babeltrue}
  {}
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\floatc@plain}
% There is then one hack to be made for French which has to be made
% before the beginning of the document \emph{if} \pkg{babel} is
% loaded before \currpkg.  This is only needed when \pkg{memoir} is
% not in use.  So there is a run of tests to see if the conditions
% for the hack are met.  \pkg{babel} support for French needs two
% name checks, \emph{zut alors}!
%    \begin{macrocode}
\@ifclassloaded{memoir}{}
  {\@ifpackageloaded{babel}
     {\IfLanguageName{french}
        {\let\floatc@plain\FB@makecaption}
        {\IfLanguageName{frenchb}
          {\let\floatc@plain\FB@makecaption}
          {}}}
  {}}
%    \end{macrocode}
%\end{macro}
% The definition of new stings is delayed until the beginning of the
% document, so that things work if \pkg{babel} is loaded after
% \currpkg.  The multiple language names mean quite a bit of
% repetition here.
%    \begin{macrocode}
\AtBeginDocument{
  \@ifpackageloaded{babel}
    {\addto{\captionsngerman}{%
       \renewcommand*{\schemename}{Schema}}
     \addto{\captionsngerman}{%
       \renewcommand*{\listschemename}{Schemenverzeichnis}}
     \addto{\captionsgerman}{%
       \renewcommand*{\schemename}{Schema}}
     \addto{\captionsgerman}{%
       \renewcommand*{\listschemename}{Schemenverzeichnis}}
%    \end{macrocode}
% French settings.  \pkg{babel} also changes some style parameters here,
% so \currpkg tries to match this.
%    \begin{macrocode}
     \addto{\captionsfrench}{%
       \renewcommand*{\schemename}{\scshape Sch\`eme}}
     \addto{\captionsfrench}{%
       \renewcommand*{\listschemename}{Table des sch\`emes}}
     \addto{\captionsfrenchb}{%
       \renewcommand*{\schemename}{\scshape Sch\`eme}}
     \addto{\captionsfrenchb}{%
       \renewcommand*{\listschemename}{Table des sch\`emes}}
%    \end{macrocode}
% To make these changes, \pkg{babel} has to be instructed to reload the current
% language.
%    \begin{macrocode}
     \expandafter\selectlanguage\expandafter{\languagename}
%    \end{macrocode}
% If \pkg{babel} was loaded after \currpkg, and the document is in
% French, then the non-\pkg{memoir} patch for floats is needed here.
% This is the same one described earlier, which cannot be delayed to
% here if \pkg{babel} is loaded first.
%    \begin{macrocode}
     \@ifclassloaded{memoir}{}
       {\IfLanguageName{french}
          {\ifcsh@babel\else
             \let\floatc@plain\FB@makecaption
           \fi}
          {\IfLanguageName{frenchb}
            {\ifcsh@babel\else
               \let\floatc@plain\FB@makecaption
             \fi}
          {}}}
      {}}{}}
%    \end{macrocode}
%
%\subsection{Reference numbers in graphics}
%\begin{macro}{\schemerefmarker}
%\changes{v1.3}{2007/10/04}{Name change}
%\begin{macro}{\schemerefformat}
%\changes{v1.3}{2007/10/04}{Name change}
% The two macros \cs{schemerefmarker} and \cs{schemerefformat}
% are used to allow customisation of the behaviour of the package.
% Here defaults are provided.
%    \begin{macrocode}
\newcommand*{\schemerefmarker}{TMP}
\newcommand*{\schemerefformat}{\textsf}
%    \end{macrocode}
%\end{macro}
%\end{macro}
%\begin{macro}{\csh@label}
% Depending on the user options provided, either \pkg{bpchem} or
% \pkg{chemcompounds} is loaded to manage chemical citations.  The macro
% \cs{chemsch@label} is defined as the labelling command of the
% appropriate package.
%    \begin{macrocode}
\ifcsh@bpchem
  \RequirePackage{bpchem}
  \let\csh@label\CNlabel
\else
  \RequirePackage{chemcompounds}
  \let\csh@label\compound
\fi
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\csh@num}
% A counter is needed for automatic substitution of reference
% numbers.  This has to be a \TeX\ count, rather than a \LaTeX\
% counter, as it has to be local.
%    \begin{macrocode}
\newcount\csh@num
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\schemeref}
%\changes{v1.3}{2007/10/04}{New macro}
% The user macro for referencing a compound in a graphic. First the
% automatic counter is incremented.
%    \begin{macrocode}
\newcommand*{\schemeref}{%
  \advance\csh@num\@ne
%    \end{macrocode}
% Now the presence of an optional argument is tested for.  If there
% is not one, the value of the automatic counter is used.
%    \begin{macrocode}
  \@ifnextchar[%]
    {\csh@schemeref}
    {\csh@schemeref[\schemerefmarker\the\csh@num]}}
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\csh@schemeref}
% The internal command to substitute the temporary marker by
% the automatic label text.  The use of |[b][b]| ensures that
% the new text is centred on the position of the marker.
%    \begin{macrocode}
\def\csh@schemeref[#1]#2{%
  \psfrag{#1}[b][b]
    {\schemerefformat{\csh@label{#2}}}}
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\csh@schemerefsub}
% For sub-referencing using \pkg{bpchem}, a similar macro is needed
% using the \cs{CNlabelsub} command.  This is defined here, with the
% user macro later.
%    \begin{macrocode}
\def\csh@schemerefsub[#1]#2#3{%
  \psfrag{#1}[b][b]
    {\schemerefformat{\CNlabelsub{#2}{#3}}}}
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\chemschemeref}
%\changes{v1.3}{2007/10/04}{Converted to a wrapper for
%  \cs{schemeref}}
% The \cs{chemschemeref} is now a backward-compatibility wrapper for
% \cs{schemeref}.
%    \begin{macrocode}
\newcommand*{\chemschemeref}[1]{\schemeref[#1]}
%    \end{macrocode}
%\end{macro}
%\begin{macro}{\schemerefsub}
%\changes{v1.3}{2007/10/04}{New macro}
%\begin{macro}{\chemschemerefsub}
%\changes{v1.3}{2007/10/04}{Now a wrapper for \cs{schemerefsub}}
% The user sub-referencing macro is defined in a package-dependent
% manner.  If \pkg{bpchem} is loaded, then \cs{schemerefsub} works in
% the same way as \cs{schemeref}, but calling the |sub| version of
% the internal macro.
%    \begin{macrocode}
\ifcsh@bpchem
  \newcommand*{\schemerefsub}{%
    \advance\csh@num\@ne
    \@ifnextchar[%]
      {\csh@schemerefsub}
      {\csh@schemerefsub[\schemerefmarker\the\csh@num]}}
  \newcommand*{\chemschemerefsub}[1]{\schemerefsub[#1]}
%    \end{macrocode}
% If \pkg{chemcompounds} is in use, then the sub-reference commands
% gobble the arguments given.  The automatic counter is still
% incremented, so that things stay (reasonably) logical.
%    \begin{macrocode}
\else
  \newcommand*{\schemerefsub}[3][]{%
    \advance\csh@num\@ne
    \PackageWarning{chemscheme}
      {`chemcompound' option active\MessageBreak
       Command \string\chemschemerefsub\space not used
       \MessageBreak Please alter your source to \MessageBreak
       \string\chemschemeref}}
  \newcommand*{\chemschemerefsub}{\schemerefsub}
\fi
%    \end{macrocode}
%\end{macro}
%\end{macro}
% \iffalse
%</package>
% \fi
% \PrintChanges
% \PrintIndex
% \Finale
%\iffalse
%<*scheme>
%!PS-Adobe-2.0 EPSF-1.2
%%Creator: ChemDraw Std(tm) 10.0
%<!labels>%%Title: scheme-one.eps
%<labels>%%Title: scheme-two.eps
%%CreationDate: 21/07/2007 12:00
%%DocumentSuppliedProcSets: chemdict30 24 13
%%DocumentFonts: Helvetica Helvetica-Oblique
%%BoundingBox: 30 78 288 144
%%EndComments
%%BeginProcSet: chemdict30 24 13
% ChemDraw Laser Prep
% Copyright © 1985-2005 CambridgeSoft Corp., All Rights Reserved
userdict/chemdict30 210 dict put
chemdict30 begin/version 24 def/sv 13 def
/b{bind def}bind def/L{load def}b/R{null def}b/d/def L/a/add L/al/aload L
/as/astore L/at/atan L/cp/closepath L/cv/curveto L/cw/currentlinewidth L
/cpt/currentpoint L/dv/div L/D/dup L/e/exch L/F/false L/f/fill L/fa/forall L
/g/get L/gi/getinterval L/gr/grestore L/gs/gsave L/ie/ifelse L/ix/index L
/l/lineto L/mt/matrix L/M/moveto L/m/mul L/n/neg L/np/newpath L/pb/pathbbox L
/P/pop L/r/roll L/rl/rlineto L/rm/rmoveto L/ro/rotate L/rp/repeat L
/ru/round L/sc/scale L/sl/setlinewidth L/sm/setmatrix L/st/stroke L
/sp/strokepath L/sq/sqrt L/s/sub L/T/true L/tr/transform L/xl/translate L
/xc/exec L/A R/N R/St R/X R/Y R/aL R/bL R/bS R/bd R/bs R/cX R/cY R/ch R/co R
/fB R/fI R/fS R/fZ R/fl R/ft R/iX R/iY R/idx R/lh R/llx R/lly R/lp R/nH R
/nSq R/newdict R/ps R/rad R/rev R/sL R/sba R/sbl R/sbs R/sn R/spa R/tB R
/typ R/urx R/ury R/w R/wF R/xX R/xY R/rBg R/gBg R/bBg R/gry R/rDst R/gDst R
/bDst R/cpd R/Aeq R/Ath R/Aos R/Ach R/ed R/sf 20 d/cW 20 d/lW 20 d/bW 75 d
/wF 1.5 d/aF 11.875 d/aR 0.263 d/aA 50 d/hS 54 d/pA 32 d/sh F d/S{sf m}b
/dL{[hS] 0 setdash}b/o{1 ix}b/rot{3 -1 r}b/x{e d}b/CMT mt d/TM mt d
/SM{CMT sm}b/XY{X D m Y D m a sq}b/s1 1 string d/fp{T charpath flattenpath}b
/p{tr ru 0.25 a e ru 0.25 a e itransform}b/Wd{65536. dv}b
/C{Wd rot Wd rot Wd rot setrgbcolor}b
/setcmykcolor where{P/sk/setcmykcolor L}{/sk{4 1 r 3{3 ix a D 0 lt{P 0}if D 1\
 gt{P 1}if 1 e s 3 1 r}rp setrgbcolor P}b}ie/sg{D currenthsbcolor P rot seths\
bcolor currenthsbcolor e P e P o s D m .001 gt{setgray}{P}ie}b
/sBg{65535 dv/bBg x 65535 dv/gBg x 65535 dv/rBg
x}b
/sRmp{currentrgbcolor bBg e s/bDst x gBg e s/gDst x rBg e s/rDst x}b
/dD{np 2 1 r 4 2 r xl 2 dv D sc -1 0 M 0 -1 l 1 0 l 0 1 l cp SM 0 ne{f}{lW 0.\
8 m sl st}ie}b
/dM{gs np 3 1 r xl D sc 0 4 M 0 -8 rl 3.5 2 rm -7 4 rl 0 -4 rm 7 4 rl SM st g\
r}b/dQ{gs np 0 360 arc 0.5 sg f gr}b
/dR{lW 0.8 m sl 2 ix s/Y x 2 ix s/X x xl Rr SM st}b
/dT{fp pb 3 1 r s 3 2 r s 2 1 r rm f}b/N 0 d/db{array/bs x/N 0 d}b
/B{bs N rot put/N N 1 a d}b
/SpA{gs np o o xl rot s e rot s o 0 ne o 0 ne or{at ro}{P P}ie
aR aL m n D aL a 0 M 0 o n aA n aA arc cp f gr}b
/SpH{gs np o o xl rot s e rot s o 0 ne o 0 ne or{at ro}{P P}ie
0 cw 2 dv xl
aR aL m n D aL a 0 M 0 o n aA n 0 arc cp f gr}b/Sp{/St x 0.316/aR x gs
aF lW m 0.8 m St 4 and 0 ne{bW m lW dv bW sl}if/aL x
St 8 and 0 ne{8 ix 8 ix 3 ix 3 ix SpA}if
St 16 and 0 ne{2 ix 6 m 1 a D ix e D ix e D ix e D ix e P SpA}if
St 32 and 0 ne{8 ix 8 ix 3 ix 3 ix SpH}if
St 64 and 0 ne{2 ix 6 m 1 a D ix e D ix e D ix e D ix e P SpH}if
St 2 and 0 ne{St 4 and 0 ne{[hS bW m lW dv] 0 setdash}{dL}ie}if
np M{cv}rp St 128 and 0 ne{f}{st}ie gr}b/Ha{gs np 3 1 r
xl D sc -.7 1.4 M 0.7 1.4 l -.7 2.4 M 0.7 2.4 l SM st gr}b
/OP{3 ix 3 ix xl 3 -1 r s 3 1 r
e s o o at ro D m e D m a sq}b
/OB{/bS x OP D bS dv D lW 2 m lt{P lW 2 m}if/bd x}b
/DA{np 0 0 M aL 0 aR aL m 180 aA s 180 aA a arc cp f}b
/OA{np 0 cw -2 dv M aL 0 aR aL m 180 aA s
180 arc 0 cw -2 dv rl cp f}b
/Ast{SM cw 0.8 m sl st}b/SA{aF m lW m/aL x 0.263/aR x aL 1 aR s m np 0 M
 rad 0 l gs Ast gr}b
/CA{aF lW m 0.8 m/aL x 0.316/aR x aL 1 aR s m 2 dv rad D m o D m s D 0 le{P
P P}{sq at 2
m np rad 0 rad 180 6 -1 r s 180 6 -1 r s arc gs Ast gr cpt
e at ro}ie}b/AA{np rad 0 rad 180 180 6 -1 r a arc gs SM st gr}b
/RA{lW m/w x np rad w M w .7 dv w l rad w n M w .7 dv w n l w
 .35 dv w 2 m M 0 0
l w .35 dv w -2 m l st}b
/HA{lW m/w x np 0 0 M w 2 m D l w 2 m w l rad w l rad w n l w 2 m
w n l w 2 m D n l cp st}b
/Ar1{gs 5 1 r OP/rad x{{2.25 SA DA}{1.5 SA DA}{1 SA DA}{lW 4 m sl 4.5 SA DA}
{lW 4 m sl 3 SA DA}{lW 4 m sl 2 SA
DA}{270 CA DA}{180 CA DA}{120 CA DA}{90 CA DA}{2.5 RA}{2.5
HA}{1 -1 sc 270 CA DA}{1 -1 sc 180 CA DA}{1 -1 sc 120 CA DA}{1 -1 sc 90 CA
DA}{5 RA}{5 HA}{dL 2.25 SA DA}{dL 1.5 SA DA}{dL 1 SA DA}{2.25 SA OA}{1.5 SA
OA}{1 SA OA}{1 -1 sc 2.25 SA OA}{1 -1 sc 1.5 SA OA}
{1 -1 sc 1 SA OA}{270 CA OA}{180 CA OA}{120 CA OA}{90 CA OA}{1 -1 sc 270 CA
OA}{1 -1 sc 180 CA OA}{1 -1 sc 120 CA OA}{1 -1 sc 90 CA OA}{1 -1 sc 270
AA}{1 -1 sc 180 AA}{1 -1 sc 120 AA}{1 -1 sc 90 AA}}e g xc
gr}b/ac{arcto 4{P}rp}b/rO{4 cw m}b/Cr{0 0 1 0 360 arc}b/Ac{XY D sc Cr SM}b
/OrA{Y X at ro XY D rev{neg}if sc}b/Ov{OrA 1 0.4 sc Cr SM}b
/Asc{OrA 1 27 dv D sc}b/LB{9 -6 M
21 -10 27 -8 27 0 cv
27 8 21 10 9 6 cv
-3 2 -3 -2 9 -6 cv
cp}b/DLB{0 0 M
0 0 -9.51 9.65 -9.51 18.02 cv
-9.51 23.22 -6.75 27 0 27 cv
6.75 27 9.51 23.22 9.51 18.02 cv
9.51 9.65 0 0 0 0 cv
cp}b/ZLB{LB}b
/dt{gs np M SM cpt np rot 4.5 dv 0 360 arc f gr}b
/whf{gs 1 setgray f gr SM st}b/blf{gs f gr SM st}b/Rr{0 rO M
0 Y X Y rO ac
X Y X 0 rO ac
X 0 0 0 rO ac
0 0 0 Y rO ac
cp}b/Rc{0 0 M
0 Y l
X Y l
X 0 l
cp}b/grf{gs 0.5 sg f gr SM st}b/gG{D 32 dv D m 1 e s/gry x
currentrgbcolor bDst gry m a 3 1 r gDst gry m a 3 1 r rDst gry m a 3 1 r
setrgbcolor}b/gS{dtransform CMT idtransform
m D 0 lt{n}if sq n D
CMT dtransform idtransform
e 2 m e
xl
7 m 32 a 256 dv D sc}b/gLB{sh{sRmp
32 -0.5 0.5{gs
gG
13.5 0 xl
D 32 s 64 dv 13.5 m D 7 m 24 dv
gS
-13.5 0 xl
LB f
gr}for
LB SM st}{LB grf}ie}b/gOv{sh{sRmp
32 -0.5 0.5{gs
gG
D 32 s 64 dv 0.65 m D
gS
Cr f
gr}for
Cr SM st}{Cr grf}ie}b/gAc{sh{sRmp
32 -0.5 0.5{gs
gG
D 32 s 64 dv D
gS
Cr f
gr}for
Cr SM st}{Cr grf}ie}b
/gDLB{sh{sRmp
32 -0.5 0.5{gs
gG
0 13.5 xl
D 32 s 64 dv 13.5 m D 7 m 24 dv e
gS
0 -13.5 xl
DLB f
gr}for
DLB SM st}{DLB grf}ie}b/gRr{sh{sRmp
32 -0.5 0.5{gs
gG
X 2 dv Y 2 dv xl
D 32 s 64 dv X Y lt{X}{Y}ie m 0.25 m D
gS
X -2 dv Y -2 dv xl
Rr f
gr}for
Rr SM st}{Rr grf}ie}b/gRc{sh{sRmp
32 -0.5 0.5{gs
gG
X 2 dv Y 2 dv xl
D 32 s 64 dv X Y lt{X}{Y}ie m 0.25 m D
gS
X -2 dv Y -2 dv xl
Rc f
gr}for
Rc SM st}{Rc grf}ie}b/gZLB{gLB}b/Ath{Y X at ro XY 2 dv/rad x gs D SA DA gr
 rad 2 m 0 xl 180 ro SA DA}b/Aeq{Y X at ro XY/rad x
rev{1 -1 sc}if
gs
0 lW 2 m xl
D SA OA
gr
rad 0 xl
180 ro
0 lW 2 m xl
SA OA}b/Aos{X Y M SM cpt xl XY e dv lW 1.667 m o o lt{e}if P D sc}b/Ach{5 Aos
gs/Helvetica findfont[1 0 0 -1 0 0]makefont 5.5 scalefont setfont
D stringwidth P 2 dv D 1 a/rad x
n 0 M show gr
rad 2 s -5 M
rad n -5 rad n 1 2 ac
rad n 1 rad 1 2 ac
rad 1 rad -5 2 ac
rad -5 rad n -5 2 ac
cp Ast}b/Ar{D 39 lt{Ar1}
{gs 5 1 r o o xl 3 -1 r e s 3 1 r s e
o 0 lt o 0 lt ne/rev x
D 0 lt{1 -1 sc neg}if/Y x D 0 lt{-1 1 sc neg}
if/X x np{{Y 16 div D 2 S lt{P 2 S}if/lp x
lp 0 M 0 0 l 0 Y l lp Y l
X lp s 0 M X 0 l X Y l X lp s Y l SM st}{Y 16 div D 2 S lt{P 2 S}if/lp x
lp 0 M
0 0 0 Y lp ac
0 Y 2 dv lp neg o lp ac
0 Y 2 dv 0 Y lp ac
0 Y lp Y lp ac
X lp s 0 M
X 0 X Y lp ac
X Y 2 dv X lp a o lp ac
X Y 2 dv X Y lp ac
X Y X lp s Y lp ac SM st}{Y D 2 dv Y 180 pA s 180 pA a arc st
np X Y s Y 2 dv
Y pA D neg arcn st}{Rc SM st}{X lW 2 dv a lW -2 dv M
rO D rl
X lW 2 dv a rO a Y lW 2 dv a rO a l
rO lW -2 dv a Y lW 2 dv a rO a l
lW -2 dv Y lW 2 dv a l
0 Y l X Y l X 0 l cp f
0 0 M
0 Y l
X Y l
X 0 l cp
SM st}{Rr SM st}{rO Y M rO rO xl
0 Y X Y rO ac
X Y X 0 rO ac
X 0 0 0 rO ac
rO neg D xl X Y 0 Y rO ac
cp f
Rr st}{Ac st}{OrA gAc}{Ov st}{OrA 1 .4 sc gOv}{Asc LB whf}{Asc gLB}
{Asc gs gLB gr
-1 -1 sc LB whf}{Asc gs gLB gr
-0.4 -0.4 sc LB whf}{Asc LB gs whf gr
np -0.4 -0.4 sc gLB}{Asc DLB -1 -1 sc DLB gs whf gr
np 90 ro gs gDLB gr -1 -1 sc gDLB}{Asc gs -1 -1 sc ZLB whf gr
gs 3.6 12 sc gOv gr
ZLB whf}{Asc gs -1 -1 sc gZLB gr
gs 3.6 12 sc Cr whf gr
gZLB}{0 0 M X Y l SM st}{bW sl 0 0 M X Y l SM st}
{dL 0 0 M X Y l SM st}{OrA 1 16 dv D sc
0 -1 M
0 0 1 0 1 ac
8 0 8 1 1 ac
8 0 16 0 1 ac
16 0 16 -1 1 ac
SM st}{XY D 0 0 dt X Y dt}{XY 2 dv X Y dt}{XY D X Y dt 0 0 M SM cpt xl
2 dv D sc
1 0 M -1 0 l
0 1 M 0 -1 l
Ast}{XY D X Y dt 0 0 M SM cpt xl
2 dv D sc
1 0 M -1 0 l
Ast}{4.5 Aos
1 0 M -1 0 l
0 1 M 0 -1 l
2 0 M 0 0 2 0 360 arc
Ast}{4.5 Aos
1 0 M -1 0 l
2 0 M 0 0 2 0 360 arc
Ast}{2.25 Ath}{1.5 Ath}{1 Ath}{2.25 Aeq}{1.5 Aeq}{1 Aeq}{OrA 1 16 dv D sc
0 -1 M 0 0 l 16 0 l 16 -1 l SM st}{5 Aos
1 -1 M -1 -1 l
0 2 M 0 -2 l
Ast}{5 Aos
1 -1 M -1 -1 l
1 1 M -1 1 l
0 2 M 0 -2 l
Ast}{4.5 Aos
1 0 M -1 0 l
0 1 M 0 -1 l
Ast}{4.5 Aos
1 0 M -1 0 l
Ast}{gRc}{gRr}{Rc blf}{Rr blf}{Ac blf}{Ov blf}{Asc DLB -1 -1 sc DLB gs whf gr
np 90 ro DLB -1 -1 sc DLB blf}{Asc gs -1 -1 sc ZLB blf gr
gs 3.6 12 sc Cr whf gr
ZLB blf}{Asc gs -1 -1 sc ZLB whf gr
gs 3.6 12 sc Cr blf gr
ZLB whf}{Asc LB gs whf gr
np -0.4 -0.4 sc LB blf}{Asc LB gs f gr gs SM st gr
np -0.4 -0.4 sc LB whf}{Asc LB blf}{Asc LB gs f gr gs SM st gr
np -1 -1 sc LB whf}{Ac whf}{OrA gAc}{Ac blf}{Ov whf}
{OrA 1 .4 sc gOv}{Ov blf}{(Rac)Ach}{(Abs)Ach}{(Rel)Ach}
}e 39 s g xc gr}ie}b/DS{np M l st}b
/DD{gs dL DS gr}b/DB{gs 12 OB bW sl np 0 0 M 0 l st gr}b/ap{e 3 ix a
e 2 ix a}b/PT{D 2 4 gi al P OP D 1 sc
o length 6 gt{P 6 g}{e P 8 dv}ie
D lW 2 m lt{P lW 2 m}if
0 e
0 0
3 -1 r s 3 1 r e s e
0 0 M 1 0 l
0 0 ap M 1 0 ap l
e n e n
0 0 ap M 1 0 ap l
P P}b/DT{gs np PT SM st gr}b
/NH{lW s D hS dv ru
cvi D 0 eq{P 1}if/nH x
D hS nH m s
D 0 lt{P .1 s nH dv}{nH 2 a dv D 0 xl 2 m s nH dv}ie}b
/Bd{D type/arraytype ne{bs e g}if{{P}{{{DS}{DD}{gs 12 OB np
bW 2 dv/bd x
lW 2 dv e D NH e{D bd M bd n l}for
st gr}{gs 12 OB np
lW 2 dv 0 xl NH 1 sc
bW 2 dv wF m nH 1 a dv/bd x
0 1 nH
{D 1 a bd m o o M n l}for SM st gr}{P}{DB}{gs 12 OB
np 0 lW 2 dv o o n M l bW 2 dv
wF m o o l n l
cp f gr}{P}{gs 12 OB/bL x
bW 2 dv D lW lt{P lW}if/bd x np 0 0 M
bL bd 4 m dv ru 2 o o lt{e}if P cvi/nSq x
bL nSq 2 m dv D sc
nSq{.135  .667 .865  .667 1 0 rcurveto
.135 -.667 .865 -.667 1 0 rcurveto}rp SM st gr}{gs 12 OB
np 0 lW 2 dv o o n M l bW 2 dv
wF m o o l n l
cp SM lW 0.8 m sl st gr}{P}{4 2 r gs OP/rad x 1 SA DA gr}{P}
}o 1 g 1 s g e 2 4 gi al P
5 -1 r xc}{al P 8 ix 1 eq{DD}{DS}ie 5 -1 r 2 eq{DB}{DS}ie P}{DT}}o 0 g g xc}b
/ed{gs cpt np cw 2 dv 0 360 arc f gr}b
/SPe{gs 0 e xl 1 1 S dv D n sc CMT currentmatrix P lW sl 4.0 setmiterlimit
np}b/ws{Wd 0 32 4 -1 roll widthshow}b/blank/Times-Roman findfont/CharStrings
g/space g d/mv 256 array d/NUL/SOH/STX/ETX/EOT/ENQ/ACK/BEL/BS/HT/LF/VT
/FF/CR/SO/SI
/DLE/DC1/DC2/DC3/DC4/NAK/SYN/ETB/CAN/EM/SUB/ESC/FS/GS/RS/US
mv 0 32 gi as P
mv 32/Times-Roman findfont/Encoding get
32 96 gi putinterval
mv 39/quotesingle put
mv 96/grave put/unknown/unknown/quotesinglbase/florin/quotedblbase/ellipsis
/dagger/daggerdbl
/circumflex/perthousand/Scaron/guilsinglleft/OE/unknown/unknown/unknown
/unknown/quoteleft/quoteright/quotedblleft/quotedblright/bullet/endash
/emdash
/tilde/trademark/scaron/guilsinglright/oe/unknown/unknown/Ydieresis
/blank/exclamdown/cent/sterling/currency/yen/brokenbar/section
/dieresis/copyright/ordfeminine/guillemotleft/logicalnot/hyphen/registered
/macron
/degree/plusminus/twosuperior/threesuperior/acute/mu/paragraph
/periodcentered
/cedilla/onesuperior/ordmasculine/guillemotright/onequarter/onehalf
/threequarters/questiondown
/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla
/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex/Idieresis
/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis/multiply
/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute/Thorn/germandbls
/agrave/aacute/acircumflex/atilde/adieresis/aring/ae/ccedilla
/egrave/eacute/ecircumflex/edieresis/igrave/iacute/icircumflex/idieresis
/eth/ntilde/ograve/oacute/ocircumflex/otilde/odieresis/divide
/oslash/ugrave/uacute/ucircumflex/udieresis/yacute/thorn/ydieresis
mv 128 128 gi as P/fSt 50 string d(ChemDraw)fSt copy P/fD{D/Symbol eq{
findfont[1 0 0 -1 0 0]makefont}{D {findfont}stopped{/Helvetica findfont}if
D length dict/newdict x{
1 index/FID ne{1 index/FontMatrix eq{[1 0 0 -1 0 0]matrix concatmatrix}if
newdict 3 1 r put}{P P}ie}forall
newdict/Encoding mv put
fSt 8 fSt length 8 sub gi cvs length 8 add
fSt 0 rot gi cvn newdict definefont}ie}b/ts{gs xl ro 0 0 M}b
/nl{0 e xl 0 0 M}b/tx{ft e g e sf m rot D 96 and 0 ne{
64 and 0 ne{-0.5}{0.25}ie e 0.75 m}{P 0 e}ie
D 4 -1 r e scalefont setfont m cpt P e M}b
end
%%EndProcSet
%%EndProlog

chemdict30 begin
/cW 24 def
/bW 48 def
/lW 12 def
/hS 32 def
/sh true def
222 SPe[
/Helvetica
fD
/Helvetica-Oblique
fD]/ft x
600 1560 M
5760 1560 l
5760 2880 l
600 2880 l
cp clip np
65535 65535
65535 sBg
0 1640 2178 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(N)show
gr
0 1182 2178 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(N)show
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1619 2364 M
1627 2376 l
1335 2376 l
1344 2364 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1598 2330 M
1598 2342 l
1364 2342 l
1364 2330 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1669 2208 M
1681 2212 l
1627 2376 l
1619 2364 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1481 1941 M
1481 1926 l
1629 2034 l
1622 2043 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1343 2041 M
1336 2032 l
1481 1926 l
1481 1941 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1363 2069 M
1356 2059 l
1478 1971 l
1485 1981 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1344 2364 M
1335 2376 l
1282 2212 l
1293 2209 l
cp
f
gr
0 1033 2091 ts
0.0000 0.0000 0.0000 1.0000 sk
-377
0 M
0 10 0 tx
(Mes)show
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1055 2043 M
1059 2031
l
1167 2066 l
1163 2078 l
cp
f
gr
0 1897 2091 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(Mes)show
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
1878 2040 M
1882 2051
l
1802 2077 l
1798 2066 l
cp
f
gr
gs
12 D sl/lW x
24 /cW x
48 /bW x
32 /hS x
0.0000 0.0000 0.0000 1.0000 sk
10 D sl/lW x
1228 1973 M
1295
1973 l st
1261 1940 M
1261 2006 l st
gr
0 2085 2400 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(Br)show
64 10 0 tx
(\226)show
gr
0 5084 2247 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(N)show
gr
0 4625 2247 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(N)show
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
5062 2433 M
5071 2445 l
4778 2445 l
4787 2433 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
5042 2399 M
5042 2411 l
4808 2411 l
4808 2399 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
5113 2277 M
5124 2281 l
5071 2445 l
5062 2433 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
4925 2010 M
4925 1995 l
5072 2102 l
5065 2112 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
4787 2110 M
4779 2101 l
4925 1995 l
4925 2010 l
cp
f
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
4787 2433 M
4778 2445 l
4725 2281 l
4737 2278 l
cp
f
gr
0 4476 2160 ts
0.0000 0.0000 0.0000 1.0000 sk
-377 0 M
0 10 0 tx
(Mes)show
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
4498 2112 M
4502 2100
l
4610 2135 l
4606 2147 l
cp
f
gr
0 5340 2160 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
(Mes)show
gr
gs
0.0000 0.0000 0.0000 1.0000 sk
np
5321 2109 M
5325 2120
l
5246 2146 l
5243 2134 l
cp
f
gr
gs
12 D sl/lW x
24 /cW x
48 /bW x
32 /hS x
0.0000 0.0000 0.0000 1.0000 sk
np
4962 1946 17 0 360 arc
cp
f
np
4887 1946 17 0 360 arc
cp
f
gr
0 3236 1785 ts
0.0000 0.0000 0.0000 1.0000 sk
-364.5 0 M
0 10 0 tx
(KO-)show
2 10 1 tx
(t)show
0 10 0 tx
(-Bu)show
201 nl
-114.5 0 M
0 10 0 tx
(thf)show
gr
gs
12 D sl/lW x
24 /cW x
48 /bW x
32 /hS x
0.0000 0.0000 0.0000 1.0000 sk
10 D sl/lW x
3597 2130 M
2771 2130 l st
gs
3581 2161 3701 2130 3701 2130 3596 2143 3581 2161 3581 2161 3581 2098
3596 2116 3596 2130 3701 2130 3581 2098 3581 2098 4 3701 2130 0 Sp
gr
gr
0
1215 2805 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
%<labels>(TMP1)show
gr
0 4642 2805 ts
0.0000 0.0000 0.0000 1.0000 sk
0 10 0 tx
%<labels>(TMP2)show
gr
gr end
%%Trailer
showpage
%</scheme>
%<*refs>
@book{Goossens2007,
  author =       {Michel Goossens and Frank Mittelbach and Sebastian Rahtz and Denis Roegel},
  title =        {The LaTeX Graphics Companion},
  subtitle =     {Illustrating Documents with TeX and Postscript},
  publisher =    {Addison Wesley},
  year =         {2007},
  series =       {Tools and Techniques for Computer Typesetting},
  edition =      {2},
}
%</refs>
%<*jawltxdoc>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{jawltxdoc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[final]{listings,graphicx,microtype}
\usepackage[scaled=0.95]{helvet}
\usepackage[version=3]{mhchem}
\usepackage[osf]{mathpazo}
\usepackage{booktabs,array,url,courier,xspace,etoolbox,varioref}
\usepackage{upgreek,ifpdf,float,caption,longtable,babel}
\floatstyle{plaintop}
\restylefloat{table}
\labelformat{figure}{\figurename~#1}
\labelformat{table}{\tablename~#1}
\ifpdf
  \usepackage{embedfile}
  \embedfile[%
    stringmethod=escape,%
    mimetype=plain/text,%
    desc={LaTeX docstrip source archive for package `\jobname'}%
    ]{\jobname.dtx}
\fi
\IfFileExists{\jobname.sty}
  {\usepackage{\jobname}}{}
\usepackage[numbered]{hypdoc}
\setcounter{IndexColumns}{2}
\newlength\LaTeXwidth
\newlength\LaTeXoutdent
\newlength\LaTeXgap
\setlength\LaTeXgap{1em}
\setlength\LaTeXoutdent{-0.15\textwidth}
\newbox\lst@samplebox
\edef\LaTeXexamplefile{\jobname.tmp}
\lst@RequireAspects{writefile}
\lstnewenvironment{LaTeXexample}[1][example]{%
  \global\let\lst@intname\@empty
  \ifcsname LaTeXcode#1\endcsname
    \expandafter\let\expandafter\LaTeXcode
      \csname LaTeXcode#1\endcsname
    \expandafter\let\expandafter\LaTeXcodeend
      \csname LaTeXcode#1end\endcsname
  \else
    \PackageError{jawltxdoc}
      {Undefined example type `#1'}
      \@ehd
    \let\LaTeXcode\relax
    \let\LaTeXcodeend\relax
  \fi
  \LaTeXcode}
  {\lst@EndWriteFile
   \LaTeXcodeend}
\newcommand*{\LaTeXcodeexample}{%
  \setbox\lst@samplebox=\hbox\bgroup
  \LaTeXcodefloat}
\let\LaTeXcoderesultonly\LaTeXcodeexample
\newcommand*{\LaTeXcodeexampleend}{%
  \egroup
  \setlength\LaTeXwidth{\wd\lst@samplebox}%
  \begin{list}{}{%
    \setlength\itemindent{0pt}
    \setlength\leftmargin\LaTeXoutdent
    \setlength\rightmargin{0pt}}%
    \item
      \setlength\LaTeXoutdent{-0.15\textwidth}
      \begin{minipage}[c]{%
        \textwidth-\LaTeXwidth-\LaTeXoutdent-\LaTeXgap}
        \LaTeXcodefloatend
      \end{minipage}%
      \hfill
      \begin{minipage}[c]{\LaTeXwidth}%
        \hbox to\linewidth{\box\lst@samplebox\hss}%
      \end{minipage}%
  \end{list}}
\let\LaTeXcodenoexample\LaTeXcodeexample
\newcommand*{\LaTeXcodenoexampleend}{%
  \egroup
  \setlength\LaTeXwidth{\wd\lst@samplebox}%
  \begin{list}{}{%
    \setlength\itemindent{0pt}
    \setlength\leftmargin{0pt}
    \setlength\rightmargin{0pt}}%
    \item
      \begin{minipage}[c]{\LaTeXwidth}
        \hbox to\linewidth{\box\lst@samplebox\hss}%
      \end{minipage}%
  \end{list}}
\newcommand*{\LaTeXcodefloat}{%
  \setkeys{lst}{tabsize=4,gobble=3,breakindent=0pt,
    basicstyle=\small\ttfamily,basewidth=0.51em,
    keywordstyle=\color{blue}}%
  \lst@BeginAlsoWriteFile{\LaTeXexamplefile}}
\newcommand*{\LaTeXcodefloatend}{%
  \MakePercentComment\catcode`\^^M=10\relax
  \small
  {\setkeys{lst}{SelectCharTable=\lst@ReplaceInput{\^\^I}%
    {\lst@ProcessTabulator}}%
    \leavevmode \input{\LaTeXexamplefile}}%
  \MakePercentIgnore}
\newcommand*{\LaTeXcoderesultonlyend}{\egroup\LaTeXcodefloatend}
\lstnewenvironment{BibTeXexample}{%
  \global\let\lst@intname\@empty
  \setbox\lst@samplebox=\hbox\bgroup
  \setkeys{lst}{tabsize=4,gobble=3,breakindent=0pt,
    basicstyle=\small\ttfamily,basewidth=0.51em,
    keywordstyle=\color{black}}
  \lst@BeginAlsoWriteFile{\LaTeXexamplefile}}
 {\lst@EndWriteFile
   \LaTeXcodeexampleend}
\newcommand*{\DescribeOption}{%
  \leavevmode\@bsphack\begingroup\MakePrivateLetters
  \Describe@Option}
\newcommand*{\Describe@Option}[1]{\endgroup
              \marginpar{\raggedleft\PrintDescribeEnv{#1}}%
              \SpecialOptionIndex{#1}\@esphack\ignorespaces}
\newcommand*{\SpecialOptionIndex}[1]{\@bsphack
    \index{#1\actualchar{\protect\ttfamily#1}
           (option)\encapchar usage}%
    \index{options:\levelchar#1\actualchar{\protect\ttfamily#1}%
      \encapchar usage}\@esphack}
\newcommand*{\indexopt}[1]{\DescribeOption{#1}\opt{#1}}
\newcommand*{\DescribeOptionInfo}[2]{%
  \DescribeOption{#1}%
  \opt{#1=\meta{#2}}\xspace}
\newcommand*{\ofixarg}[1]{%
  {\ttfamily[}%
  \ifmmode \expandafter \nfss@text \fi
  {%
    \meta@font@select
    \edef\meta@hyphen@restore{%
      \hyphenchar\the\font\the\hyphenchar\font}%
    \hyphenchar\font\m@ne
    \language\l@nohyphenation
    #1\/%
    \meta@hyphen@restore
    }%
    {\ttfamily]}}
\newcommand*{\pkg}[1]{\textsf{#1}}
\newcommand*{\currpkg}{\pkg{\jobname}\xspace}
\newcommand*{\opt}[1]{\texttt{#1}}
\newcommand*{\defaultopt}[1]{\opt{\textbf{#1}}}
\newcommand*{\file}[1]{\texttt{#1}}
\newcommand*{\ext}[1]{\file{.#1}}
\newcommand*{\latin}[1]{\emph{#1}}
\newcommand*{\etc}{%
  \@ifnextchar.
    {\latin{etc}}
    {\latin{etc}.\xspace}}
\newcommand*{\eg}{%
  \@ifnextchar.
    {\latin{e.g}}
    {\latin{e.g}.\xspace}}
\newcommand*{\ie}{%
  \@ifnextchar.
    {\latin{i.e}}
    {\latin{i.e}.\xspace}}
\newcommand*{\etal}{%
  \@ifnextchar.
    {\latin{et~al.}}
    {\latin{et~al}.\xspace}}
\newcommand*{\AMS}{{\protect\usefont{OMS}{cmsy}{m}{n}%
  A\kern-.1667em\lower.5ex\hbox{M}\kern-.125emS}}
\providecommand*{\eTeX}{\ensuremath{\varepsilon}-\TeX}
\DeclareRobustCommand*{\XeTeX}
  {X\kern-.125em\lower.5ex\hbox{\reflectbox{E}}\kern-.1667em\TeX}
\providecommand*{\CTAN}{\textsc{ctan}}
\patchcmd{\@addmarginpar}
  {\@latex@warning@no@line {Marginpar on page \thepage\space moved}}
  {\relax}{}{}
\newcounter{argument}
\g@addto@macro\endmacro{\setcounter{argument}{0}}
\newcommand*\darg[1]{%
  \stepcounter{argument}%
  {\ttfamily\char`\#\theargument~:~}#1\par\noindent\ignorespaces}
\newcommand*\doarg[1]{%
  \stepcounter{argument}%
  {\ttfamily\makebox[0pt][r]{[}%
   \char`\#\theargument]:~}#1\par\noindent\ignorespaces}
%</jawltxdoc>
%\fi