10@a@a
20@abc@abc
30@abc|de@abc
40@a|b|c@abc
50@a(b)c@abc
62@a(@EPAREN
70@a\(@a(
82@a(b@EPAREN
90@a)@a)@POSIX BOTCH
100@)@)@POSIX BOTCH
110@a()b@ab
120@^abc$@abc
131@a^b@a^b
141@a$b@a$b
150@^@abc
160@$@abc
170@^$@@
180@$^@@
190@^^@@
200@$$@@
210@a*(^b$)c*@b
222@|@EMPTY@NO ALTERNATION
232@*@BADRPT@TO CORRECT
242@+@BADRPT@TO CORRECT
252@?@BADRPT@TO CORRECT
261@&C@PASS
270@()@abc
282@a||b@EMPTY@NO ALTERNATION
292@|ab@EMPTY@NO ALTERNATION
302@ab|@EMPTY@NO ALTERNATION
312@(|a)b@EMPTY@NO ALTERNATION
322@(a|)b@EMPTY@NO ALTERNATION
332@(*a)@BADRPT@TO CORRECT
342@(+a)@BADRPT@TO CORRECT
352@(?a)@BADRPT@TO CORRECT
362@({1}a)@BADRPT@TO CORRECT
372@(a|*b)@BADRPT@NO ALTERNATION
382@(a|+b)@BADRPT@NO ALTERNATION
392@(a|?b)@BADRPT@NO ALTERNATION
402@(a|{1}b)@BADRPT@NO ALTERNATION
412@^*@BADRPT@TO CORRECT
422@^+@BADRPT@TO CORRECT
432@^?@BADRPT@TO CORRECT
442@^{1}@BADRPT@TO CORRECT
450@a.c@abc
460@a[bc]d@abd
470@a\*c@a*c
480@a\\b@a\b@TO CORRECT
490@a\\\*b@a\*b@SHELL TROUBLE
500@a\bc@abc@TO CORRECT
512@a\@EESCAPE@SHELL TROUBLE
520@a\\bc@a\bc@TO CORRECT
530@a\[b@a[b
542@a[b@EBRACK
550@a$@a
561@a$@a$
571@a\$@a@SHELL TROUBLE
580@a\$@a$@SHELL TROUBLE
591@a\\$@a
601@a\\$@a$@SHELL TROUBLE
611@a\\$@a\$@SHELL TROUBLE
620@a\\$@a\@SHEL TROUBLE
630@ab*c@abc
640@ab+c@abc
650@ab?c@abc
660@{@{@TO CORRECT
670@{abc@{abc@TO CORRECT
680@{1@{1
692@{1}@BADRPT@TO CORRECT
700@a{b@a{b@TO CORRECT
710@a{1}b@ab
720@a{1,}b@ab
730@a{1,2}b@aab
740@a{1@a{1
751@a{1a@aa
760@a{1a}@a{1a}
770@a{,2}@a{,2}
780@a{,}@a{,}
790@a{1,*}@a{1,,,}
802@a{1,x@EBRACE@TO CORRECT
812@a{300}@BADBR@TO CORRECT
822@a{1,0}@BADBR@TO CORRECT
830@ab{0,0}c@abcac
840@ab{0,1}c@abcac
850@ab{0,3}c@abbcac
860@ab{1,1}c@acabc
870@ab{1,3}c@acabc
880@ab{2,2}c@abcabbc
890@ab{2,4}c@abcabbc
902@a**@BADRPT@TO CORRECT
912@a++@BADRPT@TO CORRECT
922@a??@BADRPT@TO CORRECT
932@a*+@BADRPT@TO CORRECT
942@a*?@BADRPT@TO CORRECT
952@a+*@BADRPT@TO CORRECT
962@a+?@BADRPT@TO CORRECT
972@a?*@BADRPT@TO CORRECT
982@a?+@BADRPT@TO CORRECT
992@a{1}{1}@BADRPT@TO CORRECT
1002@a*{1}@BADRPT@TO CORRECT
1012@a+{1}@BADRPT@TO CORRECT
1022@a?{1}@BADRPT@TO CORRECT
1032@a{1}*@BADRPT@TO CORRECT
1042@a{1}+@BADRPT@TO CORRECT
1052@a{1}?@BADRPT@TO CORRECT
1060@a*{b}@a{b}@TO CORRECT
1070@a[b]c@abc
1080@a[ab]c@abc
1090@a[^ab]c@adc
1100@a[]b]c@a]c
1110@a[[b]c@a[c
1120@a[-b]c@a-c
1130@a[^]b]c@adc
1140@a[^-b]c@adc
1150@a[b-]c@a-c
1162@a[b@EBRACK
1172@a[]@EBRACK
1180@a[1-3]c@a2c
1192@a[3-1]c@ERANGE@TO CORRECT
1202@a[1-3-5]c@ERANGE@TO CORRECT
1210@a[[.-.]--]c@a-c@TO CORRECT
1222@a[1-@ERANGE
1232@a[[.@EBRACK
1242@a[[.x@EBRACK
1252@a[[.x.@EBRACK
1262@a[[.x.]@EBRACK@TO CORRECT
1270@a[[.x.]]@ax@TO CORRECT
1282@a[[.x,.]]@ECOLLATE@TO CORRECT
1290@a[[.one.]]b@a1b@TO CORRECT
1302@a[[.notdef.]]b@ECOLLATE@TO CORRECT
1310@a[[.].]]b@a]b@TO CORRECT
1320@a[[:alpha:]]c@abc
1332@a[[:notdef:]]c@ECTYPE
1342@a[[:@EBRACK
1352@a[[:alpha@EBRACK
1362@a[[:alpha:]@EBRACK
1372@a[[:alpha,:]@ECTYPE
1382@a[[:]:]]b@ECTYPE
1392@a[[:-:]]b@ECTYPE
1402@a[[:alph:]]@ECTYPE
1412@a[[:alphabet:]]@ECTYPE
1420@[[:digit:]]+@a019b
1430@[[:lower:]]+@AabC
1440@[[:upper:]]+@aBCd
1450@[[:xdigit:]]+@p0f3Cq
1460@a[[=b=]]c@abc@TO CORRECT
1472@a[[=@EBRACK
1482@a[[=b@EBRACK
1492@a[[=b=@EBRACK
1502@a[[=b=]@EBRACK@TO CORRECT
1512@a[[=b,=]]@ECOLLATE@TO CORRECT
1520@a[[=one=]]b@a1b@TO CORRECT
1530@a(((b)))c@abc
1540@a(b|(c))d@abd
1550@a(b*|c)d@abbd
1560@a[ab]{20}@aaaaabaaaabaaaabaaaab
1570@a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab]@aaaaabaaaabaaaabaaaab
1580@a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab](wee|week)(knights|night)@aaaaabaaaabaaaabaaaabweeknights
1590@12345678901234567890123456789@a12345678901234567890123456789b
1600@123456789012345678901234567890@a123456789012345678901234567890b
1610@1234567890123456789012345678901@a1234567890123456789012345678901b
1620@12345678901234567890123456789012@a12345678901234567890123456789012b
1630@123456789012345678901234567890123@a123456789012345678901234567890123b
1640@1234567890123456789012345678901234567890123456789012345678901234567890@a1234567890123456789012345678901234567890123456789012345678901234567890b
1650@[ab][cd][ef][gh][ij][kl][mn]@xacegikmoq
1660@[ab][cd][ef][gh][ij][kl][mn][op]@xacegikmoq
1670@[ab][cd][ef][gh][ij][kl][mn][op][qr]@xacegikmoqy
1680@[ab][cd][ef][gh][ij][kl][mn][op][q]@xacegikmoqy
1690@abc@xabcy
1700@aBc@Abc@TO CORRECT
1710@a[Bc]*d@abBCcd@TO CORRECT
1720@0[[:upper:]]1@0a1@TO CORRECT
1730@0[[:lower:]]1@0A1@TO CORRECT
1741@a[^b]c@abc
1751@a[^b]c@aBc@TO CORRECT
1760@a[^b]c@adc
1770@[a]b[c]@abc
1780@[a]b[a]@aba
1790@[abc]b[abc]@abc
1800@[abc]b[abd]@abd
1810@a(b?c)+d@accd
1820@(wee|week)(knights|night)@weeknights
1830@(we|wee|week|frob)(knights|night|day)@weeknights
1840@a[bc]d@xyzaaabcaababdacd
1850@a[ab]c@aaabc
1860@a*@b
1870@/\*.*\*/@/*x*/
1880@/\*.*\*/@/*x*/y/*z*/
1890@/\*([^*]|\*[^/])*\*/@/*x*/
1900@/\*([^*]|\*[^/])*\*/@/*x*/y/*z*/
1910@/\*([^*]|\*[^/])*\*/@/*x**/y/*z*/
1920@/\*([^*]|\*+[^*/])*\*+/@/*x*/
1930@/\*([^*]|\*+[^*/])*\*+/@/*x*/y/*z*/
1940@/\*([^*]|\*+[^*/])*\*+/@/*x**/y/*z*/
1950@/\*([^*]|\*+[^*/])*\*+/@/*x****/y/*z*/
1960@/\*([^*]|\*+[^*/])*\*+/@/*x**x*/y/*z*/
1970@/\*([^*]|\*+[^*/])*\*+/@/*x***x/y/*z*/
1980@aZb@a@TO CORRECT
1990@[[:<:]]a@a@TO CORRECT
2001@[[:<:]]a@ba@TO CORRECT
2010@[[:<:]]a@-a@TO CORRECT
2020@a[[:>:]]@a@TO CORRECT
2031@a[[:>:]]@ab@TO CORRECT
2040@a[[:>:]]@a-@TO CORRECT
2050@[[:<:]]a.c[[:>:]]@axcd-dayc-dazce-abc@TO CORRECT
2060@[[:<:]]a.c[[:>:]]@axcd-dayc-dazce-abc-q@TO CORRECT
2070@[[:<:]]a.c[[:>:]]@axc-dayc-dazce-abc@TO CORRECT
2080@[[:<:]]b.c[[:>:]]@a_bxc-byc_d-bzc-q@TO CORRECT
2090@[[:<:]].x..[[:>:]]@y_xa_-_xb_y-_xc_-axdc@TO CORRECT
2101@[[:<:]]a_b[[:>:]]@x_a_b@TO CORRECT
2110@(A[1])|(A[2])|(A[3])|(A[4])|(A[5])|(A[6])|(A[7])|(A[8])|(A[9])|(A[A])@A1
2120@abcdefghijklmnop@abcdefghijklmnop
2130@abcdefghijklmnopqrstuv@abcdefghijklmnopqrstuv
2140@CC[13]1|a{21}[23][EO][123][Es][12]a{15}aa[34][EW]aaaaaaa[X]a@CC11
2150@a?b@ab
216