summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/latex/exsheets/exsheets_en.tex
blob: deb80de722dba07e84e0891b16476c1da5dec88e (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
% arara: pdflatex
% arara: biber
% arara: pdflatex
% arara: pdflatex
% --------------------------------------------------------------------------
% the EXSHEETS package
% 
%   Yet another package for the creation of exercise sheets
% 
% --------------------------------------------------------------------------
% Clemens Niederberger
% Web:    https://bitbucket.org/cgnieder/exsheets/
% E-Mail: contact@mychemistry.eu
% --------------------------------------------------------------------------
% Copyright 2011-2013 Clemens Niederberger
% 
% 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 2005/12/01 or later.
% 
% This work has the LPPL maintenance status `maintained'.
% 
% The Current Maintainer of this work is Clemens Niederberger.
% --------------------------------------------------------------------------
% The exsheets bundle consists of the files
%  - exsheets.sty, exsheets_headings.def, exsheets_headings.cfg,
%    exsheets_configurations.cfg,
%    exsheets_en.tex, exsheets_en.pdf
%
%  - tasks.sty, tasks.cfg, tasks_en.tex, task_en.pdf
%
%  - translations.sty, translations_en.tex, translations_en.pdf,
%    translations-basic-dictionary-english.trsl,
%    translations-basic-dictionary-french.trsl,
%    translations-basic-dictionary-german.trsl,
%    translations-basic-dictionary-spanish.trsl
%
%  - cntformats.sty, cntformats_en.tex, cntformats_en.pdf
%
%  - README
% --------------------------------------------------------------------------
% If you have any ideas, questions, suggestions or bugs to report, please
% feel free to contact me.
% --------------------------------------------------------------------------
%
% if you want to compile this documentation you'll need the document class
% `cnpkgdoc' which you can get here:
%    https://bitbucket.org/cgnieder/cnpkgdoc/
% the class is licensed LPPL 1.3 or later
%
% use `pdflatex' and `biber' for compilation
%
\PassOptionsToPackage{supstfm=libertinesups}{superiors}
\documentclass[DIV10,toc=index,toc=bib,numbers=noendperiod]{cnpkgdoc}
% ----------------------------------------------------------------------------
% document layout and typographic features
\docsetup{
  pkg      = {[load-headings,load-tasks]exsheets} ,
  url      = {https://bitbucket.org/cgnieder/exsheets/} ,
  title    = the ExSheets bundle ,
  subtitle = {%
    the packages \ExSheets, \href{tasks_en.pdf}{\Tasks},
    \href{translations_en.pdf}{\translations} and
    \href{cntformats_en.pdf}{\cntformats}\\
    \emph{or}\\
    Yet another package for the creation of exercise sheets and exams.%
  } ,
  name     = ExSheets ,
  language = en ,
  modules  = true ,
  code-box = {
    backgroundcolor  = gray!7!white ,
    skipbelow        = .6\baselineskip plus .5ex minus .5ex ,
    skipabove        = .6\baselineskip plus .5ex minus .5ex ,
    innerleftmargin  = 1.5em ,
    innerrightmargin = 2.5em
  } ,
  gobble   = 1
}
\makeatletter
\edef\trnsltversion{\@trnslt@version}
\edef\cntfmtsversion{\@cntfmts@version}
\edef\tasksversion{v\@tasks@version}
\makeatother

% this messes with the solutions headings in the appendix:
% \usepackage{libertinehologopatch}
% => figure out why

\cnpkgusecolorscheme{friendly}

\usepackage[biblatex]{embrac}[2012/06/29]
  \ChangeEmph{[}[,.02em]{]}[.055em,-.08em]
  \ChangeEmph{(}[-.01em,.04em]{)}[.04em,-.05em]
\usepackage{microtype}
\usepackage[multiple]{fnpct}

\renewcommand*\othersectionlevelsformat[3]{\textcolor{main}{#3\autodot}\enskip}
\renewcommand*\partformat{\textcolor{main}{\partname~\thepart\autodot}}

\pagestyle{headings}

\setcapindent{1.5em}
\setkomafont{caption}{\normalfont\footnotesize\sffamily}
\setkomafont{captionlabel}{\normalfont\footnotesize\sffamily\scshape}

\usepackage{booktabs,array,ragged2e}

% ----------------------------------------------------------------------------
% code examples
% ExSheets:
\addcmds{
  acs, addpoints,
  blank, bigstar, bottomrule,
  checkedchoicebox, choice, choicebox, citetitle, cmd, color, correct,
  DebugExSheets, DeclareInstance, DeclareQuestionClass, DeclareQuestionProperty,
    DeclareTemplateInterface,
  endspacing, examspace, ForEachQuestion,
  GetQuestionProperty, grade,
  includequestions, iflastquestion,
  lastvariant, midrule, NewQuSolPair, numberofquestions,
  points, PrintIfIncludeActiveF, PrintIfIncludeActiveT, PrintIfIncludeActiveTF,
    printsolutions, PrintSolutionsF, PrintSolutionsTF, PrintSolutionsT,
  questionsincludedlast, QuestionNumber, RenewQuSolPair, rightarrow, rlap,
  s, sample, setlength, SetQuestionProperties, SetupExSheets, SetVariations,
    spacing, square, startnewitemline, sumpoints,
  tabcolsep, textcite, textcolor, toprule, totalpoints,
  variant, vary
}

% translations:
\newcommand*\translations{{\scshape\textcolor{main}{translations}}\xspace}
\addcmds{
  cuisine,
  DeclareDictTranslation, DeclareLanguage, DeclareLanguageAlias,
    DeclareLanguageDialect, DeclareTranslation,
  GetTranslation, GetTranslationFor,
  kitchen,
  LoadDictionary, LoadDictionaryFor,
  NewTranslation,
  ProvideDictionaryFor,
  RenewTranslation,
  SaveTranslation, SaveTranslationFor, selectlanguage
}

% cntformats:
\newcommand*\cntformats{{\scshape\textcolor{main}{cntformats}}\xspace}
\addcmds{
  @cntfmts@parsed@pattern, AddCounterPattern, eSaveCounterPattern,
  NewCounterPattern, ReadCounterFrom, ReadCounterPattern,
  ReadCounterPatternFrom, SaveCounterPattern, tmpa, tmpb
}

% tasks:
\newcommand*\Tasks{{\scshape\textcolor{main}{tasks}}\xspace}
\addcmds{
  leftthumbsup, NewTasks, settasks, task
}
% ----------------------------------------------------------------------------
% other packages, bibliography, index
\usepackage{xcoffins,wasysym,enumitem,booktabs,siunitx}
\usepackage[accsupp]{acro}
\DeclareAcronym{id}{
  short     = id ,
  long      = Identifier ,
  format    = \scshape ,
  pdfstring = ID ,
  accsupp   = ID
}

\usepackage{filecontents}
\usepackage{imakeidx}
\begin{filecontents*}{\jobname.ist}
 heading_prefix "{\\bfseries "
 heading_suffix "\\hfil}\\nopagebreak\n"
 headings_flag  1
 delim_0 "\\dotfill\\hyperpage{"
 delim_1 "\\dotfill\\hyperpage{"
 delim_2 "\\dotfill\\hyperpage{"
 delim_r "}\\textendash\\hyperpage{"
 delim_t "}"
 suffix_2p "\\nohyperpage{\\,f.}"
 suffix_3p "\\nohyperpage{\\,ff.}"
\end{filecontents*}
\indexsetup{othercode=\footnotesize}
\makeindex[options={-s \jobname.ist},intoc,columns=3]

\usepackage{csquotes}
\usepackage[backend=biber,style=alphabetic]{biblatex}
\addbibresource{biblatex-examples.bib}
\addbibresource{\jobname.bib}

\begin{filecontents}{\jobname.bib}
@package{answers,
  title      = {answers},
  author     = {Mike Piff},
  maintainer = {Joseph Wright},
  date       = {2010-10-11},
  version    = {2.13},
  url        = {http://mirror.ctan.org/macros/latex/contrib/answers/}
}
@package{enumitem,
  title      = {enumitem},
  author     = {Javier Bezos},
  date       = {2011-09-28},
  version    = {3.5.2},
  url        = {http://mirror.ctan.org/macros/latex/contrib/enumitem/}
}
@package{eqexam,
  title      = {eqexam},
  author     = {D. P. Story},
  date       = {2011-09-01},
  version    = {3.0k},
  url        = {http://mirror.ctan.org/macros/latex/contrib/eqexam/}
}
@package{esami,
  title      = {esami},
  author     = {Grazia Messineo and Salvatore Vassallo},
  date       = {2013-03-08},
  version    = {1.0},
  url        = {http://mirror.ctan.org/macros/latex/contrib/esami/}
}
@package{exam,
  title      = {exam},
  author     = {Philip Hirschhorn},
  date       = {2011-05-22},
  version    = {2.4},
  url        = {http://mirror.ctan.org/macros/latex/contrib/exam/}
}
@package{examdesign,
  title      = {examdesign},
  author     = {Jason Alexander},
  date       = {2001-03-26},
  version    = {1.1},
  url        = {http://mirror.ctan.org/macros/latex/contrib/examdesign/}
}
@package{exercise,
  title      = {exercise},
  author     = {Paul Pichaureau},
  date       = {2012-05-08},
  version    = {1.58},
  url        = {http://mirror.ctan.org/macros/latex/contrib/exercise/}
}
@package{exsol,
  title      = {exsol},
  author     = {Walter Daems},
  date       = {2013-05-12},
  version    = {0.6},
  url        = {http://mirror.ctan.org/macros/latex/contrib/exsol/}
}
@package{multienum,
  title      = {multienum},
  author     = {Dennis Kletzing},
  date       = {2005-05-19},
  version    = {n.n.},
  url        = {http://mirror.ctan.org/macros/latex/contrib/multienum/}
}
@package{probsoln,
  title      = {probsoln},
  author     = {Nicola L. C. Talbot},
  date       = {2012-08-23},
  version    = {3.04},
  url        = {http://mirror.ctan.org/macros/latex/contrib/probsoln/}
}
\end{filecontents}

% ----------------------------------------------------------------------------
% example definitions that have to be done in the preamble:
\DeclareQuestionClass{difficulty}{difficulties}
\DeclareQuestionProperty{notes}
\DeclareQuestionProperty{reference}
\DeclareQuestionProperty{topic}

\DeclareRelGrades{
  1     = 1 ,
  {1,5} = .9167 ,
  2     = .8333 ,
  {2,5} = .75 ,
  3     = .6667 ,
  {3,5} = .5833 ,
  4     = .5
}

\usepackage{amssymb}
\let\checkmark\relax
\usepackage{dingbat}

\NewQuSolPair
  {question*}[name=\protect\llap{$\bigstar$\space}Bonus Question]
  {solution*}[name=\protect\llap{$\bigstar$\space}Solution]

\NewTasks[style=multiplechoice]{choices}[\choice](3)
\newcommand*\correct{\PrintSolutionsTF{\checkedchoicebox}{\choicebox}}

\DeclareTranslation{English}{Kueche}{kitchen}
\DeclareTranslation{German}{Kueche}{K\"uche}
\DeclareTranslation{Spanish}{Kueche}{cocina}
\DeclareTranslation{French}{Kueche}{cuisine}
\DeclareTranslation{English}{foo}{foo}
\DeclareTranslation{British}{foo}{bar}

\usepackage{alphalph}
\NewPatternFormat{aa}{\alphalph}
\NewCounterPattern{testa}{ta}

\usepackage{etoolbox}
\robustify\code

% ----------------------------------------------------------------------------
% custom commands
\newcommand*\Default[1]{%
  \hfill\llap
    {%
      \ifblank{#1}%
        {(initially~empty)}%
        {Default:~\code{#1}}%
    }%
  \newline
}
\newcommand*\required{\hfill\llap{required}\newline}
\newcommand*\optional{\hfill\llap{optional}\newline}

\newcommand*\nooption[2]{\item[\code{\textcolor{key}{#1} = #2}] \cnpkgdocarrow\ }

\newcommand*\unexpsign{$\RHD$}
\newcommand*\expsign{\textcolor{red}{$\rhd$}}
\renewcommand*\cnpkgdoctriangle{\unexpsign}
\newcommand*\expandable{%
  \def\cnpkgdoctriangle{%
    \expsign
    \gdef\cnpkgdoctriangle{\unexpsign}}}

\usepackage{marginnote}
\makeatletter
\newcommand*\sinceversion[1]{%
  \@bsphack
  \marginnote{%
    \footnotesize\sffamily\RaggedRight
    \textcolor{black!75}{Introduced in version~#1}}%
  \@esphack}
\newcommand*\changedversion[1]{%
  \@bsphack
  \marginnote{%
    \footnotesize\sffamily\RaggedRight
    \textcolor{black!75}{Changed in version~#1}}%
  \@esphack}
\makeatother

\pdfstringdefDisableCommands{\def\llap#1{#1\space}\def\bigstar{*}}

% ----------------------------------------------------------------------------
% title page
\TitlePicture{%
  \parbox{.8\linewidth}{%
    \ExSheets provides means to create exercises or questions and their
    corresponding solutions.  The questions can be divided into classes and
    can be printed selectively.  Meta-data to questions can be added and
    recovered.
    \par
    The solutions may be printed where they are, can be collected and printed
    at a later point in the document alltogether or section-wise or
    selectively by \acs{id}.\par
    \ExSheets provides a comprehensive interface for styling the headings of
    questions and solutions.}}

\begin{document}

\part{Preliminary}\secidx{Preliminary}
\section{Licence and Requirements}
\secidx[Licence]{Preliminary}\secidx[Requirements]{Preliminary}
\ExSheets is placed under the terms of the \LaTeX{} Project Public License,
version 1.3 or later (\url{http://www.latex-project.org/lppl.txt}).  It has
the status ``maintained.''

\ExSheets loads and needs the following packages: \paket*{l3kernel},
\paket{xparse}, \paket{xtemplate}, \paket{l3sort}, \paket{l3keys2e},
\paket{xcolor}, \paket{ulem}, \paket{etoolbox}, \paket{environ}, and
\paket{pgfcore}.  \ExSheets calls \cmd{normalem} (from the \paket{ulem}
package).

\section{Motivation}\secidx[Motivation]{Preliminary}
There are already quite a number of packages that allow the creation of
exercise sheets or written exams.  Just to name the most common ones:
\paket*{eqexam}~\cite{eqexam}, \paket*{exam}~\cite{exam},
\paket*{examdesign}~\cite{examdesign}, \paket*{exercise}~\cite{exercise},
\paket*{probsoln}~\cite{probsoln}, \paket*{answers}~\cite{answers},
\paket*{esami}~\cite{esami}, \paket*{exsol}~\cite{exsol} (and many
more\footnote{see
  \url{http://www.ctan.org/characterization/primary/document-types/exams-exercise-sets-and-answers/}}).

One thing I missed in all packages that I've tried out\footnote{Well, probably
  I didn't try hard enough\ldots} was a high flexibility in choosing which
questions and solutions should be printed, where which solutions should be
printed and so on, combined with the possibility to assign questions to
different classes so one could for example create two versions of an exam out
of the box.  And --~I can't get enough~-- I also want to be able to use/design
different layouts for questions additional to a standard section-like format.
All these points are realized in \ExSheets.

Additionally one should be able to assign some sort of meta-data to questions
that of course should be easily reusable.  How this can be done is explained
in section~\ref{sec:additional_info}.

Then there is --~at least in Germany~-- the habit of having lists of exercises
aligned in columns but counting from the left to the right instead from up to
down.  \ExSheets provides a possibility for that (see part~\ref{part:tasks}).
I am not quite content with it as it works now, though\footnote{There are
  still other possibilities, for example take a look here:
  \url{http://tex.stackexchange.com/questions/67966/enumerate-in-multicols} or
  at the \paket*{multienum} package~\cite{multienum}.}.

On the other hand \ExSheets doesn't --~and probably won't~-- offer a real
possibility for creating multiple choice questions.  As a fact it doesn't
provide many (if any) means to specify the \emph{type} of question or the
structure.  If these are your needs take a look at
\paket{examdesign}~\cite{examdesign}, for example.  Or exploit the
possibilities \paket{enumitem}~\cite{enumitem} gives you.

I had the idea for this package in 2008.  Back then my \TeX{} skills were by
far not good enough to write it.  Actually, even today I wouldn't have been
able to realize it without all the l3 packages like \paket*{l3kernel} and
\paket*{l3packages}.  I actively began to develop \ExSheets in spring~2011 but
it wasn't until now (September~2012) that I consider it stable enough for
wider usage.  At the time of writing (\today) there still are probably lots of
rough edges let alone bugs so I am very interested in all kinds of feedback.

\section{Additional Packages}
\ExSheets actually bundles four packages: \ExSheets, \Tasks, \translations and
\cntformats.  \Tasks is described in part~\ref{part:tasks}, \translations is
described in part~\ref{part:translations} and \cntformats in
part~\ref{part:cntformats}.  These packages provide functionality that is used
by \ExSheets.  They can, however, be used independently from \ExSheets.

The packages \translations and \cntformats both aren't really useful on a
user-level but maybe for package writers.

\section{Installation and Documentation}\secidx[Installation]{Preliminary}
If you install \ExSheets manually beware to put the files
\begin{itemize}
  \item[]\verb+exsheets_headings.def+
  \item[]\verb+exsheets_headings.cfg+
\end{itemize}
in the same directory as the \code{exsheets.sty} file\footnote{That is, a
  directory like \code{texmf-local/tex/latex/exsheets}, probably}.  You
\emph{can} install the other packages, \Tasks, \translations and \cntformats,
in different locations but since they belong to \ExSheets they probably should
be placed in the same directory.

You should put the file \code{tasks.cfg} in the same directory as the
\code{tasks.sty} file.

As with every manual package installation you need to make sure to put the
files in a directory where \TeX\ can find them and afterwards update the
database.

\section{News}
With version~0.7 there has been a potentially breaking change: the
\code{tasks} environment previously provided by \ExSheets has been extracted
into a package of its own.  This does not change any syntax \emph{per
  se}. However, if you used custom settings then you'll probably run into some
problems.  The options for the environment are no longer set with
\cmd{SetupExSheets} but with \cmd{settasks}.  Also the object that is used for
the list template and its instances has been renamed from
\code{exsheets-tasks} into \code{tasks}.

What's probably even more of a breaking change is a syntax difference of the
\code{tasks} environment: the optional argument for the number of columns is
\emph{no longer set in braces but parentheses}.  This is deliberate as it
reflects the optional nature of the argument better and is consistent with the
syntax of \cmd{NewTasks}, too.

Additionally the labels of the list got an additional offset of \code{1ex}
from the items which will lead to slightly different output.  In some cases
this might actually lead to the most annoying changes.  In this case say
\cmd{settasks}{label-offset=0pt} which should cure things again.

I am very sorry for any inconvenience!  I am trying to keep such changes as
minimal and rare as possibly.  However, it is not always avoidable when a
package is new and still a child. It will grow up eventually.

\ExSheets' other packages -- \href{tasks_en.pdf}{\Tasks},
\href{translations_en.pdf}{\translations} and
\href{cntformats_en.pdf}{\cntformats} -- have gotten their own documentation
which are essentially extracted from this very document you're reading now.
They still will be documented in the main documentation (this document),
though.  Right now (April~25th~2013) the separate documentations do not
contain much more information than is written here but they might, in time,
get more details about the corresponding package.

\section{Thanks}
I need to thank the many users who gave me feedback so far!  For one thing
this shows me that \ExSheets is useful to people.  It also led to many
improvements like new features and countless bug fixes.
\secidx*{Preliminary}

\part{The \ExSheets package}\label{part:exsheets}\secidx{\ExSheets}[ExSheets]
\section{Setup}\secidx{Setup}
The \ExSheets package has three different types of options, kind of.  The
first type are the classic package options which are used when you load
\ExSheets:
\begin{beispiel}[code only]
 \usepackage[<options>]{exsheets}
\end{beispiel}
These options are described in section~\ref{sec:options}.

The second type are options that belong to a specific environment or command.
These options are either used directly with the environment/command
\begin{beispiel}[code only]
 \begin{env}[<options>]
  ...
 \end{env}
\end{beispiel}
or can be set with the setup command:
\begin{beschreibung}
 \Befehl{SetupExSheets}[<module>]{<options>}
\end{beschreibung}
The options of the second type all belong to
\textcolor{module}{\code{modules}}.  Let's say you want to specify some
options of the \code{question} environment.  You can then say the following:
\begin{beispiel}[code only]
 \SetupExSheets[question]{option1,option2=value2}
 % or:
 \SetupExSheets{question/option1,question/option2=value2}
\end{beispiel}
The \textcolor{module}{\code{module}} an option belongs to is written in the
left margin next to the when the option is described.

The third type aren't options at all, actually.  However, thanks to the great
\paket{xtemplate} package you are able to define your own instances of some of
the objects used by \ExSheets.  This is explained in a little more detail in
part~\ref{part:style} on page~\pageref{part:style}\,ff.  This third type,
however, brings in a possible instability: the \paket{xtemplate} package is in
an experimental and developping state.  This means that the sytax of the
package may and possibly will change sometime in the future.  I cannot foresee
what any consequences of that will be for \ExSheets.
\secidx*{Setup}

\section{Package Options}\label{sec:options}\secidx{Package Options}
The package \ExSheets has some options, namely the following ones:
\begin{beschreibung}
  %% color
  \Option{color}{<colour>}\Default{exsheetsblue}
    A custom colour that is used in certain but very rare circumstances.
  %% counter-format
  \Option{counter-format}{<counter-format>}\Default{qu.}
    Formatting of the counter of the questions.  This option takes a special
    kind of string that is described in section~\ref{ssec:counter}.
  \Option{counter-within}{<counter>}\Default{}
    Resets the \code{question} counter with every step of \code{<counter>}.
  %% auto-label
  \Option{auto-label}{\default{true}|false}\Default{false}
    If set to true \ExSheets will automatically place a \cmd*{label}{qu:<id>}
    for each question.  It will also create the question properties \code{ref}
    and \code{pageref}, see section~\ref{sec:additional_info} for more on
    this.
  %% headings
  \Option{headings}{<instance>}\Default{block}
    Choose the style of the questions' and solutions' headings.  There are two
    predefined styles: \code{block} and \code{runin}.
  %% headings-format
  \Option{headings-format}{<code>}\Default{\cmd{normalsize}\cmd{bfseries}}
    This code is placed immediately before the headings of the questions and
    solutions.
  %% load-headings
  \Option{load-headings}{\default{true}|false}\Default{false}
    Loads additional styles for the headings.  More on this is described in
    section~\ref{sec:exsheets-headings}.
  %% load-tasks
  \Option{load-tasks}{\default{true}|false}\Default{false}
    Loads additional styles for the \code{tasks} environment.  See
    part~\ref{part:tasks}.
  %% totoc
  \Option{totoc}{\default{true}|false}\Default{false}
    This option adds the questions and solutions with their names and numbers
    to the table of contents.
  %% questions-totoc
  \Option{questions-totoc}{\default{true}|false}\Default{false}
    This option adds the questions with their names and numbers to the table
    of contents.
  %% solutions-totoc
  \Option{solutions-totoc}{\default{true}|false}\Default{false}
    This option adds the solutions with their names and numbers to the table
    of contents.
  %% toc-level
  \Option{toc-level}{<toc level>}\Default{subsection}
    This option sets the level in which questions and solutions should appear
    in the table of contents.
  %% questions-toc-level
  \Option{questions-toc-level}{<toc level>}\Default{subsection}
    This option sets the level in which questions should appear in the table
    of contents.
  %% solutions-toc-level
  \Option{solutions-toc-level}{<toc level>}\Default{subsection}
    This option sets the level in which solutions should appear in the table
    of contents.
  %% use-ref
  \Option{use-ref}{\default{true}|false}\Default{false}
    enable referencing to sections and chapters in a way that the references
    can be used with \cmd{printsolutions}, see
    section~\ref{sssec:print_specific_section} for details.
\end{beschreibung}
The \code{toc} options are demonstrated with section~\ref{sec:solutions:list}
and the solutions printed there being listed in the table of contents.

\secidx*{Package Options}

\section{Create Questions/Exercises and their Solutions}
Now, let's start with the most important part: the questions and (possibly)
their respective solutions.
\subsection{The \code{question} Environment}\label{ssec:questions}
Questions are written inside the \code{question} environment:
\begin{beschreibung}
  \Umg{question}[<options>]{\unskip\ma{<points>} ... }
\end{beschreibung}
\begin{beispiel}
 \begin{question}
  This is our very first very difficult to solve question!
 \end{question}
\end{beispiel}
As you can see a heading is automatically created and the question is
numbered.  You can of course change both the numbering and the naming, but
more on that later.

The \code{question} environment takes an optional argument \ma{<points>} that
can be used to assign points to the question (as is common in written exams):
\begin{beispiel}
 \begin{question}{3}
  This is our first difficult question that is worth 3 points!
 \end{question}
\end{beispiel}
These points are saved internally (see section~\ref{sec:points} for reasons
why) and are written to the right margin next to the question heading in the
default setting.

You can also assign bonus points by inserting \code{<point>+<bonus points>} as
argument.
\begin{beispiel}
 \begin{question}{1+1}
  This question is worth 1 point and 1 bonus point.
 \end{question}
 \begin{question}{+3}
  This question is a bonus question. It is worth 3 bonus points.
 \end{question}
\end{beispiel}

\sinceversion{0.3}On additional thing: you might want to define custom
commands that should behave differently if they're inside or outside of the
\code{question} environment.  In this case you can use these commands:
\begin{beschreibung}
  \expandable\Befehl{IfInsideQuestionTF}{<true code>}\ma{<false code>}
  \expandable\Befehl{IfInsideQuestionT}{<true code>}
  \expandable\Befehl{IfInsideQuestionF}{<false code>}
\end{beschreibung}

\subsection{Options to the \code{question} Environment}\secidx[options]{questions}
The \code{question} environment takes one or more of the following options:
\begin{beschreibung}
  \Option[question]{type}{exam|exercise}\Default{exercise}
    determines the type of question and changes the default name of a question
    from ``Exercise'' to ``Question''.  These default names are language
    dependent.
    
    If you use \cmd*{usepackage}[ngerman]{babel}, for example, then the names
    are ``\"Ubung and ``Aufgabe''.
  \Option[question]{name}{<name>}\Default{}
    sets a custom name.  All predefined names are discarded.
  \Option[question]{print}{\default{true}|false}\Default{true}
    prints or hides the question.
  \Option[question]{ID}{<id>}\Default{}
    assigns a custom \acs{id} to the question.  See section~\ref{ssec:ids} for
    further information.
  \Option[question]{label}{<label>}\Default{}
    Places a \cmd*{label}{<label>} for the question.  This will overwrite any
    label that is placed by the \key{auto-label} option.
  \Option[question]{class}{<class>}\Default{}
    assigns a class to the question.  See section~\ref{sec:classes} for
    further information.
  \Option[question]{topic}{<topic>}\Default{}
    assigns a topic to the question.  See section~\ref{sec:topics} for further
    information.
  \Option[question]{use}{\default{true}|false}\Default{true}
    discards the question.  Or not.
\end{beschreibung}
\begin{beispiel}
 \begin{question}[type=exam]
  This question has the type \texttt{exam}. The default name has changed from
  ``Exercise'' to ``Question''.
 \end{question}
 \begin{question}[name=Fancy name]
  This question has a custom name.
 \end{question}
 \begin{question}[print=false]
  This question is not printed.
 \end{question}
\end{beispiel}

The difference between \key{print} and \key{use} lies behind the scenes: with
\key{print}{false} the question is not printed, but it still gets an
individual \ac{id}, is numbered, and a possible solution is saved.  This is
for example useful when you want to print a sample solution for an exam.  With
\key{use}{false} it is fully discarded which means it is not accessible
through an \acs{id} and a possible solution will not be saved.

\secidx*{questions}

\subsection{The \code{solution} Environment}\secidx{solutions}
If you want to save/print (more on the exact usage in
section~\ref{sec:solutions}) a solution you have to use the \code{solution}
environment \emph{after} the question it belongs to and \emph{before} the next
question.
\begin{beschreibung}
  \Umg{solution}[<options>]{...}
\end{beschreibung}
\begin{beispiel}
 \begin{question}[ID=first]\label{qu:question_with_solution}
  This is our first question that gets a solution!
 \end{question}
 \begin{solution}
  This is the solution to exercise~\ref{qu:question_with_solution}!
 \end{solution}
\end{beispiel}
You can see that in the default settings the solution is \emph{not} written to
the document.  It has been saved, though, for possible later usage.  We will
see the solution later!

\subsection{Options to the \code{solution} Environment}\secidx[options]{solutions}
The \code{solutions} environment also has options, namely these:
\begin{beschreibung}
  \Option[solution]{name}{<name>}\Default{}
    sets a custom name.
  \Option[solution]{print}{\default{true}|false}\Default{false}
    prints or hides the solution.
\end{beschreibung}
Their meaning is the same as those for the \code{question} environment.
\begin{beispiel}
 \begin{question}{5}
  The solution to this questions gets printed where it is.
 \end{question}
 \begin{solution}[print]
  See? This solution gets printed where you have put it in the code of
  your document.
 \end{solution}
 \begin{question}{2.5}
  The solution to this questions gets printed where it is \emph{and}
  has a fancy name. Have you noticed that you can assign partial
  points?
 \end{question}
 \begin{solution}[print,name=Fancy name]
  See? This solution gets printed where you have put it and has a fancy
  name!
 \end{solution}
\end{beispiel}
\secidx*{solutions}

\subsection{Setting the Counter}\label{ssec:counter}\secidx{Setting the Counter}
The package option \key{counter-format} allows you to specify how the question
counter is formatted.

The input is an arbitrary string which means you can have anything as counter
number.  However, the letter combinations \code{ch}, \code{se}, \code{qu} and
\code{tsk} are replaced with the counters for the chapter, section, question
or tasks (see part~\ref{part:tasks}), respectively.  While the last one is not
really useful in this case the others allow for a combined numbering.  Each of
these letter combinations can have an optional argument that specifies the
format of the respective counter. \code{1}: \cmd{arabic}, \code{a}:
\cmd{alph}, \code{A}: \cmd{Alph}, \code{r}: \cmd{roman} and \code{R}:
\cmd{Roman}.
\begin{beispiel}
 \SetupExSheets{counter-format=Nr~se~(qu[a])}
 \begin{question}
  A question with a differently formatted number.
 \end{question}
\end{beispiel}
Since the strings associated with the counters are replaced one has to hide
them if they are actually wanted in the counter format.  The easiest way would
to hide them in braces.
\begin{beispiel}
 \SetupExSheets{counter-format={section}\,se~{question}\,(qu[a])}
 \begin{question}
  A question with a yet differently formatted number.
 \end{question}
\end{beispiel}
\secidx*{Setting the Counter}

\subsection{Language Settings}\secidx{Language Settings}
The names of the questions and solutions are language dependent.  If you use
\paket{babel} or \paket{polyglossia} \ExSheets will adapt to the document
language.  \ExSheets has a number of translations but surely not all!  If you
miss a language please drop me a line in an
email\footnote{\href{mailto:contact@mychemistry.eu}{contact@mychemistry.eu}}
containing the \paket{babel} language name and the correct translations for
questions (possibly distinguishing between exercises and exam questions) and
solutions.

Until I implement it you can add something like this to your preamble (example
for Danish) and try if it works:
\begin{beispiel}[code only]
 \DeclareTranslation{Danish}{exsheets-exercise-name}
   {\O{}velse}
 \DeclareTranslation{Danish}{exsheets-question-name}
   {Opgave}
 \DeclareTranslation{Danish}{exsheets-solution-name}
   {Opl\o{}sning}
\end{beispiel}
If this isn't working it means that the language you're using is unknown to
the \translations package (see part~\ref{part:translations}).  In this case
please notify me, too.  You then can still use the \key{name} options.

\secidx*{Language Settings}

\section{Counting Points}\label{sec:points}\secidx{Counting Points}
\subsection{The Commands}
You have seen in section~\ref{ssec:questions} that you can assign points to a
question.  If you do so these points are printed into the
margin\footnote{Well, not necessarily.  It depends on the heading style you
  have chosen.} and are counted internally.  But there are additional commands
to assign points or bonus points and a number of commands to retrieve the sum
of points and/or bonus points.
\begin{beschreibung}
  \Befehl{addpoints}*{<num>}\newline
    This command can be used to add points assigned to subquestions.
    \cmd{addpoints} will print the points (with ``unit'') \emph{and} add them
    to the sum of all points, \cmd{addpoints}* will only add them but print
    nothing.
  \Befehl{points}*{<num>}\newline
    This command will only print the points (with ``unit'') but won't add them
    to the sum of points.
  \Befehl{addbonus}*{<num>}\newline
    This command can be used to add bonus points assigned to subquestions.
    \cmd{addbonus} will print the points (with ``unit'') \emph{and} add them
    to the sum of all bonus points, \cmd{addbonus}* will only add them but
    print nothing.
  \Befehl{bonus}*{<num>}\newline
    This command will only print the bonus points (with ``unit'') but won't
    add them to the sum of bonus points.
  \Befehl{pointssum}*\newline
    Prints the sum of all points with or without (starred version) ``unit'':
    \pointssum
  \Befehl{currentpointssum}*\newline
    Prints the current sum of points with or without (starred version)
    ``unit'': \currentpointssum
  \Befehl{bonussum}*\newline
    Prints the sum of all bonus points with or without (starred version)
    ``unit'': \bonussum
  \Befehl{currentbonussum}*\newline
    Prints the current sum of bonus points with or without (starred version)
    ``unit'': \currentbonussum
  \Befehl{totalpoints}*\newline
    prints the sum of the points \emph{and} the sum of the bonus points with
    ``unit'': \totalpoints\space The starred version prints the sum of the
    points without ``unit'': \totalpoints*.
\end{beschreibung}
The commands \cmd{pointssum}, \cmd{bonussum} and \cmd{totalpoints} need at
least \emph{two} \LaTeX\ runs to get the sum right.

Suppose you have an exercise worth \points{4} which consists of four questions
listed with an \code{enumerate} environment that are all worth \points{1}
each.  You have two possibilities to display and count them:
\begin{beispiel}
 % uses package `enumitem'
 \begin{question}{4}
  \begin{enumerate}[label=\alph*)]
   \item blah (\points{1})
   \item blah (\points{1})
   \item blah (\points{1})
   \item blah (\points{1})
  \end{enumerate}
 \end{question}
 \begin{question}
  \begin{enumerate}[label=\alph*)]
   \item blah (\addpoints{1})
   \item blah (\addpoints{1})
   \item blah (\addpoints{1})
   \item blah (\addpoints{1})
  \end{enumerate}
 \end{question}
\end{beispiel}

\subsection{Options}\secidx[options]{Counting Points}
\begin{beschreibung}
  \Option[points]{name}{<name>}\Default{P.}
    Choose the ``unit'' for the points.  If you like to differentiate between
    a single point and more than one point you can give a plural ending
    separated with a slash: \key{name}{point/s}.  This sets also the name of
    the bonus points.
  \Option[points]{name-plural}{<plural form of name>}\Default{}
    Instead of forming the plural form with an ending to the singular form
    this option allows to set an extra word for it.  This sets also the plural
    form for the bonus points.
  \Option[points]{bonus-name}{<name>}\Default{P.}
    Choose the ``unit'' for the bonus points.  If you like to differentiate
    between a single point and more than one point you can give a plural
    ending separated with a slash: \key{bonus-name}{point/s}.
  \Option[points]{bonus-plural}{<plural form of name>}\Default{}
    Instead of forming the plural form with an ending to the singular form
    this option allows to set an extra word for it.
  \Option[points]{use-name}{\default{true}|false}\Default{true}
    Don't display the name at all.  Or do.
  \Option[points]{format}{<code>}\Default{\cmd*{@firtsofone}}
    \sinceversion{0.9d}Format number plus name as a whole.  Ideally
    \code{<code>} would end with a command that takes an argument.  Else
    number plus name will be braced.
  \Option[points]{number-format}{<any code>}\Default{}
    This option allows formatting of the number, \eg italics:
    \key{number-format}{\cmd{textit}}.
  \Option[points]{bonus-format}{<any code>}\Default{}
    This option allows formatting of the number of the bonus points, \eg
    italics: \key{bonus-format}{\cmd{textit}}.
  \Option[points]{parse}{\default{true}|false}\Default{true}
    If set to \code{false} the points are not counted and the
    \cmd{totalpoints}, \cmd{pointssum} and \cmd{bonussum} commands won't know
    their value.
  \Option[points]{separate-bonus}{\default{true}|false}\Default{false}
    This option determines whether points and bonus points each get their own
    unit when they appear together (in the margin or with \cmd{totalpoints}).
  \Option[points]{pre-bonus}{<tokens>}\Default{(+}
    Code to be inserted before the bonus points when they follow normal
    points.
  \Option[points]{post-bonus}{<tokens>}\Default{)}
    Code to be inserted after the bonus points when they follow normal
    points.
\end{beschreibung}
\begin{beispiel}
 \SetupExSheets[points]{name=point/s,number-format=\color{red}}
 \begin{question}{1}
  This one's easy so only 1 point can be earned.
 \end{question}
 \begin{question}{7.5}
  But this one's hard! 7.5 points are in there for you!
 \end{question}
\end{beispiel}
\secidx*{Counting Points}

\section{Printing Solutions}\label{sec:solutions}\secidx[print]{solutions}
You have already seen that you can print solutions where they are using the
\key[solution]{print} option.  But \ExSheets offers you quite more
possibilities.

In the next subsections the usage of the command
\begin{beschreibung}
  \Befehl{printsolutions}[<setting>]
\end{beschreibung}
is discussed.

Before we do that a hint: remember that you can set the option \key{print}
globally:
\begin{beispiel}[code only]
 % in the preamble
 \SetupExSheets{solution/print=true}
\end{beispiel}

Now if you want to typeset some text depending on the option being true or not
you can use the following commands:
\begin{beschreibung}
  \expandable\Befehl{PrintSolutionsTF}{<true code>}\ma{<false code>}
  \expandable\Befehl{PrintSolutionsT}{<true code>}
  \expandable\Befehl{PrintSolutionsF}{<false code>}
\end{beschreibung}
They might come in handy if you want two versions of an exercise sheet, one
with the exercises and one with the solutions, and you want to add different
titles to these versions, for instance.

\subsection{Print all}\secidx[print!all]{solutions}
The first and easiest usage of \cmd{printsolutions} is the following:
\begin{beispiel}[code only]
 \printsolutions
\end{beispiel}
There is nothing more to say, really. It prints all solutions you have
specified except those belonging to a question with option \key{use}{false}.
Yes, there's one more point: \cmd{printsolutions} only knows the solutions
that have been set \emph{before} its usage!  This is also true for every usage
explained in the next sections.

\begin{beispiel}[below]
 \printsolutions
\end{beispiel}

\subsection{Print per chapter/section}\secidx[print!per section/chapter]{solutions}
\minisec{Current chapter/section}
If you are not creating an exercise sheet or an exam but are writing a
textbook you maybe want a section at the end of each chapter showing the
solution to the exercises presented in that chapter.  In this case use the
command as follows:
\begin{beispiel}[code only]
 \printsolutions[section]
 % or
 \printsolutions[chapter]
\end{beispiel}
Again, this is pretty much self-explaining.  The solutions to the questions of
the current chapter\footnote{Only if the document class you're using
  \emph{has} chapters, of course!} or section are printed.
\begin{beispiel}
 \begin{question}
  This is the first and only question in this section.
 \end{question}
 \begin{solution}
  This will be one of a few solutions printed by the following call of
  \cmd{printsolutions}.
 \end{solution}
 And now:
 \printsolutions[section]
\end{beispiel}

\minisec{Specific chapter/section}\label{sssec:print_specific_section}
You can also print only the solutions from chapters or sections other than the
current ones.  The syntax is fairly easy:
\begin{beispiel}[below]
 \printsolutions[section={1-7,10}]
 % the same for chapters:
 % \printsolutions[chapter={1-7,10}]
\end{beispiel}
Don't forget that \cmd{printsolutions} cannot know the solutions from
section~10 yet.  It is just used to demonstrate the syntax. You can also use
an open range, \eg something like
\begin{beispiel}[code only]
 \printsolutions[section={-4,10-}]
\end{beispiel}
This would print the solutions from sections~1--4 and from all sections with
number 10\footnote{Or rather where \cmd{value}{section} is 10 or greater --
  the actual counter formatting is irrelevant.} and greater.

There is an obvious disadvantage: you have to know the section numbers!  But
there is a solution: use the package option \key{use-ref}{true}.  Then you can
do something like
\begin{beispiel}[code only]
 % in the preamble:
 \usepackage[use-ref]{exsheets}
 % somewhere in your code after \section{A really cool section title}:
 \label{sec:ReallyCool}
 % somewhere later in your code:
 \printsolutions[section={-\S{sec:ReallyCool}}]
 % which will print all solutions from questions up to and
 % including the really cool section
\end{beispiel}
With the package option \key{use-ref}{true} each usage of \cmd{label} will
create additional labels (one preceded with \code{exse:} and another one with
\code{exch:}) which store the section number and the chapter number,
respectively.  These are used internally by two commands \cmd{S} and \cmd{C}
which refer to the section number and the chapter number the label was created
in.  \emph{These commands are only available as arguments of}
\cmd{printsolutions}.

Since some packages like the well known \paket{hyperref} for example redefine
\cmd{label} \key{use-ref} won't work in together with it.  In this case don't
use \key{use-ref} and set \cmd{exlabel}{<label>} instead to remember the
section/the chapter number.  Its usage is just like \cmd{label}.  So the
safest way is as follows:
\begin{beispiel}[code only]
 % in the preamble:
 \usepackage{exsheets}
 % somewhere in your code after \section{A really cool section title}:
 \exlabel{sec:ReallyCool}
 % somewhere later in your code:
 \printsolutions[section={-\S{sec:ReallyCool}}]
 % which will print all solutions from questions up to and
 % including the really cool section
\end{beispiel}
Please be aware that the labels must be processed in a previous \LaTeX\ run
before \cmd{S} and \cmd{C} can pass them on to \cmd{printsolutions}.

\subsection{Print by \acs{id}}\label{ssec:ids}\secidx[print!by ID]{solutions}
Now comes the best part: you can also print selected solutions!  Every
question has an \acs{id}.  To see which \acs{id} a question has you can call
the following command:
\begin{beschreibung}
  \Befehl{DebugExSheets}{true|false}
  \Befehl{CurrentQuestionID}\newline\sinceversion{0.4a}%
    expands to the current question \acs{id} (after two expansions).
\end{beschreibung}
Let's create some more questions and take a look what this command does:
\begin{beispiel}
 \DebugExSheets{true}
 \begin{question}[ID=nice!]
  A question with a nice \acs{id}!
 \end{question}
 \begin{solution}
  The solution to the question with the nice \acs{id}.
 \end{solution}
 \begin{question}{3.75}
  Yet another question. But this time with quarter points!
 \end{question}
 \begin{solution}
  Yet another solution.
 \end{solution}
\end{beispiel}

So now we can call some specific solutions:
\begin{beispiel}
 \printsolutions[byID={first,nice!,10,14}]
\end{beispiel}
This makes use of the \paket{l3sort} package which at the time of writing is
still considered experimental.  In case you wonder where solution~14 is:
question~14 has no solution given.

If you don't want that the solutions are sorted automatically but appear in
the order given you can use the option
\begin{beschreibung}
  \Option[solution]{sorted}{\default{true}|false}\Default{true}
    Sort solutions given by \acs{id} or don't.
\end{beschreibung}

\section{Dividing Questions into Classes}\label{sec:dividing-concepts}
\subsection{Using Classes}\label{sec:classes}\secidx{Classes}
\secidx[Classes]{Dividing Concepts}
For creating different variants of a written exam or different difficulty
levels of an exercise sheet it comes in handy if one can assign certain
classes to questions and then tell \ExSheets only to use one ore more specific
classes.
\begin{beschreibung}
  \Option{use-classes}{<list of classes>}\Default{}
    When this option is used only the questions belonging to the specified
    classes are printed and have their solutions saved.
\end{beschreibung}
\begin{beispiel}
 \SetupExSheets{use-classes={A,C}}
 \begin{question}[class=A]
  Belonging to class A.
 \end{question}
 \begin{question}[class=B]
  Belonging to class B.
 \end{question}
 \begin{question}[class=C]
  Belonging to class C!
 \end{question}
\end{beispiel}
Questions of classes that are not used are fully discarded. \emph{This also
  means that questions that don't have a class assigned are discarded.}

\secidx*{Classes}
\ExplSyntaxOn
 \bool_set_false:N \g__exsheets_use_classes_bool
\ExplSyntaxOff

\subsection{Using Topics}\label{sec:topics}\secidx{Topics}
\secidx[Topics]{Dividing Concepts}
Similarly to classes one can assign topics to questions. The usage is practically
identical, the semantic meaning is different.
\begin{beschreibung}
  \Option{use-topics}{<list of topics>}\Default{}
    When this option is used only the questions belonging to the specified
    topics are printed and have their solutions saved.
\end{beschreibung}
\begin{beispiel}
 \SetupExSheets{use-topics={trigonometry}}
 \begin{question}[topic=trigonometry]
  A trigonometry question.
 \end{question}
 \begin{question}[topic=arithmetics]
  A arithmetics question
 \end{question}
\end{beispiel}
Questions of topics that are not used are fully discarded. \emph{This also
  means that questions that don't have a topic assigned are discarded.}

If you set both \key{use-classes} and \key{use-topics} then only questions
will be used that \emph{match both categories}.

Ideally one could assign more than one topic to a question but this is
\emph{not} supported yet.
\secidx*{Topics}
\ExplSyntaxOn
 \bool_set_false:N \g__exsheets_use_topics_bool
\ExplSyntaxOff

\subsection{Own Dividing Concepts}\secidx{Dividing Concepts}
\noindent\sinceversion{0.8}Actually both classes and topics are introduced
into \ExSheets internally this way:
\begin{beispiel}[code only]
 \DeclareQuestionClass{class}{classes}
 \DeclareQuestionClass{topic}{topics}
\end{beispiel}
which means you can do the same introducing your own dividing concepts.
\begin{beschreibung}
  \Befehl{DeclareQuestionClass}{<singular name>}\ma{<plural name>}\newline
    Introduces a new dividing concept and defines both new options for the
    \code{question} environment and new global options.
\end{beschreibung}

For example you could decide you want to group your questions according to
their difficulty.  You could place the following line in your preamble:
\begin{beispiel}[code only]
 \DeclareQuestionClass{difficulty}{difficulties}
\end{beispiel}
This would define an option \key{use-difficulties} analogous to
\key{use-classes} and \key{use-topics}.  It would also define an option
\key{difficulty} for the \code{question} environment.  This means you could
now do something like the following:
\begin{beispiel}
 \SetupExSheets{use-difficulties={easy,hard}}
 \begin{question}[difficulty=easy]
  An easy question.
 \end{question}
 \begin{question}[difficulty=medium]
  This one's a bit harder.
 \end{question}
 \begin{question}[difficulty=hard]
  Now let's see if you can solve this one.
 \end{question}
\end{beispiel}
\secidx*{Dividing Concepts}
\ExplSyntaxOn
 \bool_set_false:N \g__exsheets_use_difficulties_bool
\ExplSyntaxOff

\section{Adding and Using Additional Information to Questions}\label{sec:additional_info}
\secidx{Additional Information to Questions}
For managing lots of questions and corresponding solutions it can be very
useful to be able to save and recover additional information to the questions.
This is possible with the following commands.  First the ones for saving:
\begin{beschreibung}
  \Befehl{DeclareQuestionProperty}{<name>}\newline
    This command defines a question property \code{<name>}.  It can only be
    used in the document preamble.
  \Befehl{SetQuestionProperties}{<name>=<value>,...}\newline
    Set the properties for a specific question. this command can only be used
    inside the \code{question} environment.
\end{beschreibung}
Now the commands for recovering the properties:
\begin{beschreibung}
  \Befehl{QuestionNumber}{<id>}\newline
    Recover the number of the question with the \acs{id} \code{<id>}.  The
    number is displayed according to the format set with
    \key{counter-format}.
  \Befehl{GetQuestionProperty}{<name>}\ma{<id>}\newline
    Recover the property \code{<name>} of the question with the \acs{id}
    \code{<id>}.  Of course the property must have been declared before.
\end{beschreibung}

Let's say we have declared the properties \code{notes}, \code{reference} and
\code{topic}.  By default the property \code{points} is available and gets the
value of the optional argument of the \code{question} environment.

We can now do the following:
\begin{beispiel}
 % uses `biblatex'
 \begin{question}[ID=center,topic=LaTeX]{3}
  Explain how you could center text in a \LaTeX\ document.
  \SetQuestionProperties{
    topic     = \TeX/\LaTeX ,
    notes     = {How to center text.},
    reference = {\textcite{companion}}}
 \end{question}
 \begin{solution}
  To center a short part of the text body one can use the \texttt{center}
  environment (\points{1}). Inside an environment like \texttt{table} one
  should use \texttt{\string\centering} (\points{1}). For single lines
  there is also the \texttt{\string\centerline} command (\points{1}).
 \end{solution}
 \begin{question}[ID=knuthbooks,topic=LaTeX]{2}
  Name two books by D.\,E.\,Knuth.
  \SetQuestionProperties{
    topic     = \TeX/\LaTeX ,
    notes     = {Books by Knuth.},
    reference = {\textcite{knuth:ct:a,knuth:ct:b,knuth:ct:c,knuth:ct:d,knuth:ct:e}}}
 \end{question}
 \begin{solution}
  For example two volumes from \citetitle{knuth:ct}:
  \citetitle{knuth:ct:a,knuth:ct:b,knuth:ct:c,knuth:ct:d,knuth:ct:e}. Each valid
  answer is worth \points{1}
 \end{solution}
\end{beispiel}

It is now possible to recover these values later:
\begin{beispiel}
 % uses `booktabs'
 \begin{center}
  \begin{tabular}{lll}
   \toprule
    Question & Property & \\
   \midrule
    \QuestionNumber{center}
      & Points     & \GetQuestionProperty{points}{center} \\
      & Topic      & \GetQuestionProperty{topic}{center} \\
      & References & \GetQuestionProperty{reference}{center} \\
      & Note       & \GetQuestionProperty{notes}{center} \\
   \midrule
    \QuestionNumber{knuthbooks}
      & Points     & \GetQuestionProperty{points}{knuthbooks} \\
      & Topic      & \GetQuestionProperty{topic}{knuthbooks} \\
      & References & \GetQuestionProperty{reference}{knuthbooks} \\
      & Note       & \GetQuestionProperty{notes}{knuthbooks} \\
   \bottomrule
  \end{tabular}
 \end{center}
\end{beispiel}

\sinceversion{0.7a}If you use the package option \key{auto-label} the
properties \code{ref} and \code{pageref} are predefined which will call the
corresponding \cmd*{ref} or \cmd*{pageref}, respectively.

Please note that these properties \emph{are not the same} as the dividing
concepts explained in section~\ref{sec:dividing-concepts} although they may
seem similar in meaning or even have the same name.

\sinceversion{0.3}There are additional commands that might prove useful:
\begin{beschreibung}
  \Befehl{ForEachQuestion}{<code to be executed for each used question>}\newline
    Inside the argument one can refer to the \ac{id} of a question with
    \code{\#1}.  Beware that this command only knows of questions used before
    it is issued.
  \expandable\Befehl{numberofquestions}\newline
    Returns the current number of used questions.  Beware that this command
    only knows of questions used before it is issued.
  \expandable\Befehl{iflastquestion}{<true code>}\ma{<false code>}\newline
    Although this command is available in the whole document it is only useful
    inside \cmd{ForEachQuestion}.  It tells you if the end of the loop is
    reached or not.
\end{beschreibung}
For example one could use these commands to create a grading table:
\begin{beispiel}[code only]
 \begin{tabular}{|l|*{\numberofquestions}{c|}c|}\hline
  Question &
    \ForEachQuestion{\QuestionNumber{#1}\iflastquestion{}{&}} &
    Total \\ \hline
  Points   &
    \ForEachQuestion{\GetQuestionProperty{points}{#1}\iflastquestion{}{&}} &
    \pointssum* \\ \hline
  Reached  &
    \ForEachQuestion{\iflastquestion{}{&}} & \\ \hline
 \end{tabular}
\end{beispiel}
For four questions the table now would look similar to
figure~\ref{fig:grading-table}.

\begin{figure}[ht]
 \centering
 \begin{tabular}{|l|*{4}{c|}c|}\hline
  Question & 1. & 2. & 3. & 4. & Total \\ \hline
  Points   &  3 &  5 & 10 &  8 & 26 \\ \hline
  Reached  &    &    &    &    &    \\ \hline
 \end{tabular}
 \caption{An example for a grading table. (Actually this is a fake. See the
   \code{grading-table.tex} file shipped with exsheets for the real use case.)}
 \label{fig:grading-table}
\end{figure}
\secidx*{Additional Information to Questions}

\section{Variations of an Exam}\secidx{Variations}
\noindent\sinceversion{0.6}It is a quite common task to design an exam in two
different variants.  This is of course possible with \ExSheets' classes (see
section~\ref{sec:classes}).  However, often not the whole question is to be
different but only small details, the numbers in a maths exam, say.  For this
purpose \ExSheets provides the following commands:
\begin{beschreibung}
  \Befehl{SetVariations}{<num>}\newline
    Set the number of different variants.  This will determine how many
    arguments the command \cmd*{vary} will get.  \code{<num>} must at least be
    \code{2} and is initially set to \code{2}.
  \Befehl{variant}{<num>}\newline
    Choose the active variant.  The argument must be a number between \code{1}
    and the number set with \cmd*{SetVariations}.  Initially set to \code{1}.
  \Befehl{vary}{<variant 1>}\ma{<variant 2>}\newline
    This command is the one actually used in the document.  It has a number of
    required arguments equal to the number set with \cmd*{SetVariations}.  All
    of its arguments are discarded except the one specified with
    \cmd*{variant}.
  \Befehl{lastvariant}\newline% TODO: richtige version einfügen!
    \sinceversion{0.7b}Each time \cmd{vary} is called it stores the value it
    chose in \cmd{lastversion}.  This might be convenient to use if one
    otherwise would have to repeatedly write the same \cmd{vary}.
\end{beschreibung}

\begin{beispiel}
 \SetVariations{6}%
 \variant{6}\vary{A}{B}{C}{D}{E}{F}
 (last variant: \lastvariant)
 \variant{1}\vary{A}{B}{C}{D}{E}{F}
 (last variant: \lastvariant)
 \variant{5}\vary{A}{B}{C}{D}{E}{F}
 (last variant: \lastvariant)
 \variant{2}\vary{A}{B}{C}{D}{E}{F}
 (last variant: \lastvariant)
 \variant{4}\vary{A}{B}{C}{D}{E}{F}
 (last variant: \lastvariant)
 \variant{3}\vary{A}{B}{C}{D}{E}{F}
 (last variant: \lastvariant)
\end{beispiel}
\secidx*{Variations}

\section{A Grade Distribution}\secidx{Grade Distribution}
Probably this is a rather esoteric feature but it could proof useful in some
cases.  Suppose you are a German math teacher and want to grade exactly
corresponding to the number of points relative to the sum of total points,
regardless of how big that might be.  You could do something like this to
present your grading decisions for the exam:
\begin{beispiel}
 % preamble:
 % \DeclareRelGrades{
 %   1     = 1 ,
 %   {1,5} = .9167 ,
 %   2     = .8333 ,
 %   {2,5} = .75 ,
 %   3     = .6667 ,
 %   {3,5} = .5833 ,
 %   4     = .5
 % }
 \small\setlength\tabcolsep{2pt}
 \begin{tabular}{r|*8c}
  Punkte
    & $\grade*{1}$      & $\le\grade*{1}$ & $\le\grade*{1,5}$ & $\le\grade*{2}$
    & $\le\grade*{2,5}$ & $\le\grade*{3}$ & $\le\grade*{3,5}$ & $<\grade*{4}$ \\
  Note
    & 1 & 1--2 & 2 & 2--3 & 3 & 3--4 & 4 & 5
 \end{tabular}
\end{beispiel}

These are the available commands and options:
\begin{beschreibung}
  \Befehl{DeclareRelGrades}{<grade>=<num>,...}\newline
    This command is used to define grades and assign the percentage of total
    points to them.
  \Befehl{grade}*{<grade>}\newline
    Gives the number of points corresponding to a grade depending on the value
    of \cmd{pointssum} with or without (starred version) ``unit''.
  \Option[grades]{round}{<num>}\Default{0}
    The number of decimals the points of a grade are rounded to.  This doesn't
    apply to the maximum number of points if the rounded number would be
    bigger than the actual sum.
  \Option[grades]{half}{\default{true}|false}\Default{false}
    If set to \code{true} points are rounded either to full or to half
    points.
\end{beschreibung}
\secidx*{Grade Distribution}

\section{Selectively Include Questions from External Files}\label{sec:include}
\secidx{Include from External Files}
\subsection{Caveat}
I need to say some words of caution: the \cmd{includequestions} that will be
presented shortly is probably \ExSheets' most experimental one at the time of
writing (\today).  Thanks to feedback of users it is constantly improved and
bugs are fixed.  It is not a very efficient way to insert question regarding
performance and you shouldn't wonder if compilation slows down when you use
it.  It probably needs to be re-written all over but on the one hand that
would introduce new bugs and on the other hand for the time being I don't have
the capacities, anyway, so you'll have to live it, I'm afraid.

\subsection{How it works}
Suppose you have one or more files with questions prepared to use them as a
kind of database.  One for class A, say, one for class B, one for class C and
so one, something like this:
\begin{beispiel}[code only]
 % this is file classA.tex
 \begin{question}[class=A,ID=A1,topic=X]
  First question of class A, topic X.
 \end{question}
 \begin{solution}
  First solution of class A.
 \end{solution}
 \begin{question}[class=A,ID=A2,topic=Y]
  Second question of class A, topic Y.
 \end{question}
 \begin{solution}
  Second solution of class A.
 \end{solution}
 ...
 % end of file classA.tex
 \endinput
\end{beispiel}
You can of course just \cmd{input} or \cmd{include} it but that would of
course include the whole file into your document.  But would't it be nice to
just include selected questions?  Or maybe a five random questions from the
file?  That is possible with the following command:
\begin{beschreibung}
  \Befehl{includequestions}[<options>]{<list of filenames>}
\end{beschreibung}
If you use it without options it will have the same effect as
\cmd{input}.  There are however the following options:
\begin{beschreibung}
  \Option[include]{all}{\default{true}|false}
  \Option[include]{IDs}{<list of IDs>}\Default{}
    Includes only the specified questions.
  \Option[include]{random}{<num>}\Default{}
    Includes \code{<num>} randomly selected questions.  This option uses the
    \paket{pgfcore} package to create the pseudo-random numbers.
  \Option[include]{exclude}{<list of IDs>}\Default{}
    Questions who's \acp{id} are specified here are \emph{not} included.  This
    option can be combined with the \key{random} option.
\end{beschreibung}
The usage should be self-explainable:
\begin{beispiel}[code only]
 % include questions A1, A3 and A4:
 \includequestions[IDs={A1,A3,A4}]{classA.tex}
 % or include 3 random questions:
 \includequestions[random=3]{classA}
\end{beispiel}
In order to be able to select the questions \ExSheets needs to \cmd{input} the
file twice.  The first time the available questions are determined, the second
time the selected questions are used.  This unfortunately means that anything
that is \emph{not} part of a question or solution is also input twice.  Either
don't put anything else into the file or use one of the following commands for
control:
\begin{beschreibung}
 \Befehl{PrintIfIncludeActiveTF}\ma{<true code>}\ma{<false code>}
 \Befehl{PrintIfIncludeActiveT}\ma{<true code>}
 \Befehl{PrintIfIncludeActiveF}\ma{<false code>}
\end{beschreibung}

The selection can be refined further by selecting questions belonging to a
specific class of questions (see section~\ref{sec:dividing-concepts}) before
using \cmd{includequestions}.

\sinceversion{0.8}After you've used \cmd{includequestions} the \acp{id} of the
included questions is available as an unordered comma separated list in the
following macro:
\begin{beschreibung}
  \Befehl{questionsincludedlast}\newline
    Unordered comma separated list of question \acp{id} included with the last
    usage of \cmd{includequestions}.
\end{beschreibung}
\secidx*{Include from External Files}

\section{Own Question/Solution Pairs}
\noindent\changedversion{0.9}\ExSheets provides he possibility to create new
environments that behave like the \code{question} and \code{solution}
environments.  This would allow, for example, to define a
\code{question*}/\code{solution*} environment pair for bonus questions.  The
following commands may be used in the document preamble:
\begin{beschreibung}
  \Befehl{NewQuSolPair}{<question>}\oa{<question options>}\oa{<general options>}%
    \ma{<solution>}\oa{<solution options>}\oa{<general options>}
  \Befehl{RenewQuSolPair}{<question>}\oa{<question options>}\oa{<general options>}%
    \ma{<solution>}\oa{<solution options>}\oa{<general options>}
\end{beschreibung}
The standard environments are defined as follows:
\begin{beispiel}[code only]
 \NewQuSolPair{question}{solution}
\end{beispiel}

Let's say we want the possibility to add bonus questions.  A simple way would
be to define starred variants that add a star in the margin left to the title:
\begin{beispiel}
 % preamble:
 % \NewQuSolPair
 %   {question*}[name=\protect\llap{$\bigstar$\space}Bonus Question]
 %   {solution*}[name=\protect\llap{$\bigstar$\space}Solution]
 \begin{question*}
  This is a bonus question.
 \end{question*}
 \begin{solution*}[print]
  This is what the solution looks like.
 \end{solution*}
\end{beispiel}
As you can see the environments take the same options as are described for the
standard \code{question} and \code{solution} environments.

\section{Filling in the Blanks}\secidx{Blanks}
\subsection{Cloze}\secidx[Cloze]{Blanks}
\noindent\changedversion{0.4}Both in exercise sheets and in exams it is
sometimes desirable to be able to create \blank{blanks} that have to be filled
in.  Or maybe some more lines: \blank[width=5\linewidth]{}

\begin{beschreibung}
  \Befehl{blank}*[<options>]{<text to be filled in>}\newline
    creates a blank in normal text or in a question but fills the text of its
    argument if inside a solution.  If used at the \emph{begin of a paragraph}
    \cmd{blank} will do two things: it will set the linespread according to an
    option explained below and will insert \cmd*{par} after the lines.  If you
    don't want that use the starred version.
\end{beschreibung}

The options are these:
\begin{beschreibung}
  \Option[blank]{style}{line|wave|dline|dotted|dashed}\Default{line}
    The style of the line.  This uses the corresponding command from the
    \paket{ulem} package and is the whole reason why \ExSheets loads it in the
    first place.
  \Option[blank]{scale}{<num>}\Default{1}
    Scales the width of the blank by factor \code{<num>} unless the width is
    explicitly set.
  \Option[blank]{width}{<dim>}\Default{}
    The width of the line.  If it is not used the width of the filled in text
    is used.
  \Option[blank]{linespread}{<num>}\Default{1}
    Set the linespread for the blank lines.  This only has an effect if
    \cmd{blank} is used at the begin of a paragraph.
\end{beschreibung}
\begin{beispiel}
 \begin{question}
  Try to fill in \blank[width=4cm]{these} blanks. All of them
  \blank[style=dotted]{are created} by using the \cmd{blank}
  \blank[style=dashed]{command}.
 \end{question}
 \begin{solution}[print]
  Try to fill in \blank[width=4cm]{these} blanks. All of them
  \blank[style=dotted]{are created} by using the \cmd{blank}
  \blank[style=dashed]{command}.
 \end{solution}
\end{beispiel}
A number of empty lines are easily created by setting the width option:
\begin{beispiel}
 
 \blank[width=4.8\linewidth,linespread=1.5]{}
\end{beispiel}

\subsection{Vertical Space for answers}\secidx[vertical space]{Blanks}
\noindent\sinceversion{0.3}When you're creating an exam you might want to add
some vertical space where the students can write down their answers.  While
you can always use \cmd*{vspace} this is not always handy when the space left
on the page is less than you want.  In this case it would be nice if a) there
would be no warning and b) the rest of the space would be added at the top of
the next page.  This is what the following command is for:
\begin{beschreibung}
  \Befehl{examspace}*{<dim>}\newline
    Add space as specified in \ma{<dim>}. If the space available on the
    current page is not enough the rest of the space will be added at the top
    of the next page.  The starred version will silently drop any leftover
    space instead of adding it to the next page.
\end{beschreibung}
\begin{beispiel}
 \begin{question}
  What do you think of this feature?
  \examspace{3cm}
 \end{question}
 This line comes after the space.
\end{beispiel}
\secidx*{Blanks}

\section{Styling your Exercise/Exam Sheets}\label{part:style}
\subsection{Background}
The \ExSheets package makes extensive use of \LaTeX3's coffins\footnote{See
  the documentation to the \paket*{xcoffins} package for more information on
  that.} as well as its templates concept\footnote{Have a look into the
  documentation to the \paket*{xtemplate} package.}.  The latter allows a
rather easy extension and customization of some of \ExSheets' environments.
To be more precise: you can define your own instances for the headings used
for questions and solutions and for the \code{tasks} environment.

What this package doesn't provide is changing the background of questions or
framing them.  But this is easily possible using the \paket{mdframed} package
and its \cmd*{surroundwithmdframed} command.

\subsection{The \code{exsheets-headings} Object}\label{sec:exsheets-headings}
\secidx{The `exsheets-headings' Object}
\ExSheets defines the object \code{exsheets-headings} and one template for it,
the `default' template.  The package also defines two instances of this
template, the `block' instance and the `runin' instance.

\begin{beispiel}
 \SetupExSheets{headings=block}
 \begin{question}{1}
  a `block' heading
 \end{question}
 \SetupExSheets{headings=runin}
 \begin{question}{1}
  a `runin' heading
 \end{question}
\end{beispiel}

\subsubsection{Available Options}
This section only lists the options that can be used when defining an instance
of the `default' template.  The following subsections will give loads of
examples of their usage.  The options are listed in the definition for the
template interface:

\begin{beispiel}[code only]
 \DeclareTemplateInterface{exsheets-heading}{default}{3}
  {
    % option         : type      = default
    inline           : boolean   = false ,
    runin            : boolean   = false ,
    indent-first     : boolean   = false ,
    toc-reversed     : boolean   = false ,
    vscale           : real      = 1     ,
    above            : length    = 2pt   ,
    below            : length    = 2pt   ,
    main             : tokenlist =       ,
    pre-code         : tokenlist =       ,
    post-code        : tokenlist =       ,
    title-format     : tokenlist =       ,
    title-pre-code   : tokenlist =       ,
    title-post-code  : tokenlist =       ,
    number-format    : tokenlist =       ,
    number-pre-code  : tokenlist =       ,
    number-post-code : tokenlist =       ,
    points-format    : tokenlist =       ,
    points-pre-code  : tokenlist =       ,
    points-post-code : tokenlist =       ,
    join             : tokenlist =       ,
    attach           : tokenlist =
  }
\end{beispiel}


Each heading is built with at most four coffins available with the names
`main', `title', `number' and `points'.  Those coffins place possibly the
whole heading, the title, the question number and the assigned points.  The
only coffin that's always typeset is the `main' coffin, which is empty per
default.

Coffins can be joined (two become one, the first extends its bounding box to
contain the second) using the following syntax:
\begin{beispiel}[code only]
 join = coffin1[handle11,handle12]coffin2[handle21,handle22](x-offset,y-offset)
\end{beispiel}
The syntax for attaching (two become one, the first does \emph{not} extend its
bounding box around the second) is the same.

More on coffin handles is described in the documentation for the
\paket{xcoffins}.  Figure~\ref{fig:handles} briefly demonstrates the available
handle pairs.

\begin{figure}[ht]
 \centering
 \parbox{4.5cm}{%
   \NewCoffin\ExampleCoffin
   \SetHorizontalCoffin\ExampleCoffin{\color{gray!30}\rule{4cm}{4cm}}%
   \DisplayCoffinHandles\ExampleCoffin{blue}%
 }
 \caption{Available handles for a horizontal coffin.}\label{fig:handles}
\end{figure}

The following subsections will show all definitions of the instances available
with the package option \key{load-headings} and how they look.  This will
hopefully give you enough ideas to create your own instance if you want to
have another heading style than the ones available.

Of you use the option \key{load-headings} each of the following instances is
available through the option \key{headings}{<instance>}.

The following examples use a sample text defined as follows:
\begin{beispiel}[code only]
 \def\s{This is some sample text we will use to create a somewhat
   longer text spanning a few lines.}
 \def\sample{\s\ \s\par\s}
\end{beispiel}
\def\s{This is some sample text we will use to create a somewhat longer text
 spanning a few lines.}
\def\sample{\s\ \s\par\s}

\subsubsection{The `block' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{block}{default}
  {
    join             = { title[r,B]number[l,B](1ex,0pt) } ,
    attach           =
      {
        main[l,vc]title[l,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=block}
\begin{question}{1}
 A `block' heading. \sample
\end{question}

\subsubsection{The `runin' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin}{default}
  {
    runin            = true ,
    number-post-code = \space ,
    attach           =
      { main[l,vc]points[l,vc](\linewidth+\marginparsep,0pt) } ,
    join             =
      {
        main[r,vc]title[r,vc](0pt,0pt) ;
        main[r,vc]number[l,vc](1ex,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=runin}
\begin{question}{1}
 A `runin' heading. \sample
\end{question}

\subsubsection{The `simple' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{simple}{default}
  {
    title-format     = \normalsize ,
    points-pre-code  = ( ,
    points-post-code = ) ,
    attach           = { main[l,t]number[l,t](0pt,0pt) } ,
    join             =
      {
        number[r,b]title[l,b](1ex,0pt) ;
        main[l,b]points[l,t](1em,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=simple}
\begin{question}{1}
 A `simple' heading. \sample
\end{question}

\subsubsection{The `empty' Instance}
\sinceversion{0.9a}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{empty}{default}
  {
    runin  = true ,
    above  = \parskip ,
    below  = \parskip ,
    attach = { main[l,vc]points[l,vc](\linewidth+\marginparsep,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=empty}
\begin{question}{1}
 An `empty' heading. \sample
\end{question}

\subsubsection{The `block-rev' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{block-rev}{default}
  {
    toc-reversed     = true ,
    join             = { number[r,B]title[l,B](1ex,0pt) } ,
    attach           =
      {
        main[l,vc]number[l,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=block-rev}
\begin{question}{1}
 A `block-rev' heading. \sample
\end{question}

\subsubsection{The `block-wp' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{block-wp}{default}
  {
    points-pre-code  = ( ,
    points-post-code = ) ,
    join             =
      {
        title[r,B]number[l,B](1ex,0pt) ;
        title[r,B]points[l,B](1ex,0pt)
      } ,
    attach           = { main[l,vc]title[l,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=block-wp}
\begin{question}{1}
 A `block-wp' heading. \sample
\end{question}

\subsubsection{The `block-wp-rev' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{block-wp-rev}{default}
  {
    toc-reversed     = true ,
    points-pre-code  = ( ,
    points-post-code = ) ,
    join             =
      {
        number[r,B]title[l,B](1ex,0pt) ;
        number[r,B]points[l,B](1ex,0pt)
      } ,
    attach           = { main[l,vc]number[l,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=block-wp-rev}
\begin{question}{1}
 A `block-wp-rev' heading. \sample
\end{question}

\subsubsection{The `block-nr' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{block-nr}{default}
  {
    attach           =
      {
        main[l,vc]number[l,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=block-nr}
\begin{question}{1}
 A `block-nr' heading. \sample
\end{question}

\subsubsection{The `block-nr-wp' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{block-nr-wp}{default}
  {
    points-pre-code  = ( ,
    points-post-code = ) ,
    join             = { number[r,vc]points[l,vc](1ex,0pt) } ,
    attach           = { main[l,vc]number[l,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=block-nr-wp}
\begin{question}{1}
 A `block-nr-wp' heading. \sample
\end{question}

\subsubsection{The `runin-rev' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin-rev}{default}
  {
    toc-reversed     = true ,
    runin            = true ,
    title-post-code  = \space ,
    attach           =
      { main[l,vc]points[l,vc](\linewidth+\marginparsep,0pt) } ,
    join             =
      {
        main[r,vc]number[r,vc](0pt,0pt) ;
        main[r,vc]title[l,vc](1ex,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=runin-rev}
\begin{question}{1}
 A `runin-rev' heading. \sample
\end{question}

\subsubsection{The `runin-wp' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin-wp}{default}
  {
    runin            = true ,
    points-pre-code  = ( ,
    points-post-code = )\space ,
    join             =
      {
        main[r,vc]title[r,vc](0pt,0pt) ;
        main[r,vc]number[l,vc](1ex,0pt) ;
        main[r,vc]points[l,vc](1ex,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=runin-wp}
\begin{question}{1}
 A `runin-wp' heading. \sample
\end{question}

\subsubsection{The `runin-wp-rev' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin-wp-rev}{default}
  {
    toc-reversed     = true ,
    runin            = true ,
    points-pre-code  = ( ,
    points-post-code = )\space ,
    join             =
      {
        main[r,vc]number[r,vc](0pt,0pt) ;
        main[r,vc]title[l,vc](1ex,0pt) ;
        main[r,vc]points[l,vc](1ex,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=runin-wp-rev}
\begin{question}{1}
 A `runin-wp-rev' heading. \sample
\end{question}

\subsubsection{The `runin-nr' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin-nr}{default}
  {
    runin            = true ,
    number-post-code = \space ,
    attach           =
      { main[l,vc]points[l,vc](\linewidth+\marginparsep,0pt) } ,
    join             = { main[r,vc]number[l,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=runin-nr}
\begin{question}{1}
 A `runin-nr' heading. \sample
\end{question}

\subsubsection{The `runin-fixed-nr' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin-fixed-nr}{default}
  {
    runin            = true ,
    number-pre-code  = \hbox to 2em \bgroup ,
    number-post-code = \hfil\egroup ,
    attach           =
      { main[l,vc]points[l,vc](\linewidth+\marginparsep,0pt) } ,
    join             = { main[r,vc]number[l,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=runin-fixed-nr}
\begin{question}{1}
 A `runin-fixed-nr' heading. \sample
\end{question}

\subsubsection{The `runin-nr-wp' Instance}
\needspace{2\baselineskip}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{runin-nr-wp}{default}
  {
    runin            = true ,
    points-pre-code  = ( ,
    points-post-code = )\space ,
    join             =
      {
        main[r,vc]number[l,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](1ex,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=runin-nr-wp}
\begin{question}{1}
 A `runin-nr-wp' heading. \sample
\end{question}

\subsubsection{The `inline' Instance}
\sinceversion{0.5}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{inline}{default}
  {
    inline           = true ,
    number-pre-code  = \space ,
    number-post-code = \space ,
    join             =
      {
        main[r,vc]title[r,vc](0pt,0pt) ;
        main[r,vc]number[l,vc](0pt,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=inline}
Text before
\begin{question}{1}
 An `inline' heading. \sample
\end{question}
 Text after

\subsubsection{The `inline-wp' Instance}
\sinceversion{0.5}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{inline-wp}{default}
  {
    inline           = true ,
    number-pre-code  = \space ,
    number-post-code = \space ,
    points-pre-code  = ( ,
    points-post-code = )\space ,
    join             =
      {
        main[r,vc]title[r,vc](0pt,0pt) ;
        main[r,vc]number[l,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](0pt,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=inline-wp}
Text before
\begin{question}{1}
 An `inline-wp' heading. \sample
\end{question}
 Text after

\subsubsection{The `inline-nr' Instance}
\sinceversion{0.5}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{inline-nr}{default}
  {
    inline           = true ,
    number-post-code = \space ,
    join             = { main[r,vc]number[l,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=inline-nr}
Text before
\begin{question}{1}
 An `inline-nr' heading. \sample
\end{question}
 Text after

\subsubsection{The `centered' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{centered}{default}
  {
    join             = { title[r,B]number[l,B](1ex,0pt) } ,
    attach           =
      {
        main[hc,vc]title[hc,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=centered}
\begin{question}{1}
 A `centered' heading. \sample
\end{question}

\subsubsection{The `centered-wp' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{centered-wp}{default}
  {
    points-pre-code  = ( ,
    points-post-code = ) ,
    join             =
      {
        title[r,B]number[l,B](1ex,0pt) ;
        title[r,B]points[l,B](1ex,0pt)
      } ,
    attach           = { main[hc,vc]title[hc,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=centered-wp}
\begin{question}{1}
 A `centered-wp' heading. \sample
\end{question}

\subsubsection{The `margin' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{margin}{default}
  {
    runin            = true ,
    number-post-code = \space ,
    points-pre-code  = ( ,
    points-post-code = )\space ,
    join             = { title[r,b]number[l,b](1ex,0pt) } ,
    attach           =
      {
        main[l,vc]title[r,vc](0pt,0pt) ;
        main[l,b]points[r,t](0pt,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=margin}
\begin{question}{1}
 A `margin' heading. \sample
\end{question}

\subsubsection{The `margin-nr' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{margin-nr}{default}
  {
    runin  = true ,
    attach =
      {
        main[l,vc]number[r,vc](-1ex,0pt) ;
        main[r,vc]points[l,vc](\linewidth+\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=margin-nr}
\begin{question}{1}
 A `margin-nr' heading. \sample
\end{question}

\subsubsection{The `raggedleft' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{raggedleft}{default}
  {
    join             = { title[r,B]number[l,B](1ex,0pt) } ,
    attach           =
      {
        main[r,vc]title[r,vc](0pt,0pt) ;
        main[r,vc]points[l,vc](\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=raggedleft}
\begin{question}{1}
 A `raggedleft' heading. \sample
\end{question}

\subsubsection{The `fancy' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{fancy}{default}
  {
    toc-reversed     = true ,
    indent-first     = true ,
    vscale           = 2 ,
    pre-code         = \rule{\linewidth}{1pt} ,
    post-code        = \rule{\linewidth}{1pt} ,
    title-format     = \large\scshape\color{exsheetsred} ,
    number-format    = \large\bfseries\color{exsheetsblue} ,
    points-format    = \itshape ,
    join             = { number[r,B] title[l,B] (1ex,0pt) } ,
    attach           =
      {
        main[hc,vc]number[hc,vc](0pt,0pt) ;
        main[l,vc]points[r,vc](-\marginparsep,0pt)
      }
  }
\end{beispiel}
\SetupExSheets{headings=fancy}
\begin{question}{1}
 A `fancy' heading. \sample
\end{question}

\subsubsection{The `fancy-wp' Instance}
\begin{beispiel}[code only]
 \DeclareInstance{exsheets-heading}{fancy-wp}{default}
  {
    toc-reversed     = true ,
    indent-first     = true ,
    vscale           = 2 ,
    pre-code         = \rule{\linewidth}{1pt} ,
    post-code        = \rule{\linewidth}{1pt} ,
    title-format     = \large\scshape\color{exsheetsred} ,
    number-format    = \large\bfseries\color{exsheetsblue} ,
    points-format    = \itshape ,
    points-pre-code  = ( ,
    points-post-code = ) ,
    join             =
      {
        number[r,B]title[l,B](1ex,0pt) ;
        number[r,B]points[l,B](1ex,0pt)
      } ,
    attach           = { main[hc,vc]number[hc,vc](0pt,0pt) }
  }
\end{beispiel}
\SetupExSheets{headings=fancy-wp}
\begin{question}{1}
 A `fancy-wp' heading. \sample
\end{question}
\secidx*{The `exsheets-headings' Object}

\subsection{Load Custom Configurations}\secidx{Custom Configurations}
If you have custom configurations you want to be loaded automatically then save
them in a file \code{exsheets\_configurations.cfg}. If this file is present it
will be loaded \cmd*{AtBeginDocument}.
\secidx*{Custom Configurations}
\secidx*{\ExSheets}[ExSheets]
\SetupExSheets{headings=block}

\part{The \Tasks package (\tasksversion)}\label{part:tasks}
\secidx{\Tasks}[tasks]
\section{About the Documentation}
\noindent\sinceversion{0.9a}The \Tasks package has got its own documentation --
\url{tasks_en.pdf}.  Please read that file for details on the package.

\part{The \translations package (\trnsltversion)}
\label{part:translations}\secidx{\translations}[translations]
\section{About the Documentation}
\noindent\sinceversion{0.9a}The \translations package has got its own documentation --
\url{translations_en.pdf}.  Please read that file for details on the package.

\part{The \cntformats package (\cntfmtsversion)}
\label{part:cntformats}\secidx{\cntformats}[cntformats]
\section{About the Documentation}
\noindent\sinceversion{0.5}The \cntformats{} package has got its own documentation --
\url{cntformats_en.pdf}.  Please read that file for details on the package.

\appendix
\part{Appendix}
\addsec{A List of all Solutions used in this Manual}\label{sec:solutions:list}
\SetupExSheets{headings=block-wp,solutions-totoc}
\printsolutions

\RaggedRight\printbibliography

\setindexpreamble{Section titles are indicated \textbf{bold}, packages \textsf{sans
serif}, commands \code{\textbackslash\textcolor{code}{brown}}, options \textcolor
{key}{\code{yellow}} and modules \textcolor{module}{\code{blue}}.}
\printindex
\end{document}