1# brackets, and numerous perversions thereof 2a[b]c & abc abc 3a[ab]c & abc abc 4a[^ab]c & adc adc 5a[]b]c & a]c a]c 6a[[b]c & a[c a[c 7a[-b]c & a-c a-c 8a[^]b]c & adc adc 9a[^-b]c & adc adc 10a[b-]c & a-c a-c 11a[b &C EBRACK 12a[] &C EBRACK 13a[1-3]c & a2c a2c 14a[3-1]c &C ERANGE 15a[1-3-5]c &C ERANGE 16a[[.-.]--]c & a-c a-c 17a[1- &C ERANGE 18a[[. &C EBRACK 19a[[.x &C EBRACK 20a[[.x. &C EBRACK 21a[[.x.] &C EBRACK 22a[[.x.]] & ax ax 23a[[.x,.]] &C ECOLLATE 24a[[.one.]]b & a1b a1b 25a[[.notdef.]]b &C ECOLLATE 26a[[.].]]b & a]b a]b 27a[[:alpha:]]c & abc abc 28a[[:notdef:]]c &C ECTYPE 29a[[: &C EBRACK 30a[[:alpha &C EBRACK 31a[[:alpha:] &C EBRACK 32a[[:alpha,:] &C ECTYPE 33a[[:]:]]b &C ECTYPE 34a[[:-:]]b &C ECTYPE 35a[[:alph:]] &C ECTYPE 36a[[:alphabet:]] &C ECTYPE 37[[:alnum:]]+ - -%@a0X- a0X 38[[:alpha:]]+ - -%@aX0- aX 39[[:blank:]]+ - aSSTb SST 40[[:cntrl:]]+ - aNTb NT 41[[:digit:]]+ - a019b 019 42[[:graph:]]+ - Sa%bS a%b 43[[:lower:]]+ - AabC ab 44[[:print:]]+ - NaSbN aSb 45[[:punct:]]+ - S%-&T %-& 46[[:space:]]+ - aSNTb SNT 47[[:upper:]]+ - aBCd BC 48[[:xdigit:]]+ - p0f3Cq 0f3C 49a[[=b=]]c & abc abc 50a[[= &C EBRACK 51a[[=b &C EBRACK 52a[[=b= &C EBRACK 53a[[=b=] &C EBRACK 54a[[=b,=]] &C ECOLLATE 55a[[=one=]]b & a1b a1b 56