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## Enumerated character lists
[c] abcdef y character class
[dcb]{3} abcdef y repeated character class
^[a] abcdef y anchored character class
[^e] abcdef y negated character class
^[a]? abcdef y anchored optional character class
[^e]? abcdef y negated optional character class
[^dcb]{3} abcdef n repeated negated character class
^[^e] abcdef y anchored negated character class
^[^a] abcdef n anchored negated character class
[b-d] abcdef y character range
[b-d] abxxef y character range
[b-d] axcxef y character range
[b-d] axxdef y character range
[b-d] axxxef n character range
[^b-d] abcdef y negated character range
[-] ab-def y unescaped hyphen, the only thing
[x-] ab-def y unescaped hyphen, at the end
[-x] ab-def y unescaped hyphen, at the beginning
[\-] ab-def y escaped hyphen
[\-] abcdef n escaped hyphen
[^\-] ---x-- y negated escaped hyphen
[^\-] ------ n negated escaped hyphen
[\-+] ab-def y escaped hyphen in range
[\-+] ab+def y escaped hyphen in range
[\-+] abcdef n escaped hyphen in range
[+\-] ab-def y escaped hyphen in range
[+\-] ab+def y escaped hyphen in range
[+\-] abcdef n escaped hyphen in range
[^\-+] ---x-- y negated escaped hyphen in range
[^\-+] ------ n negated escaped hyphen in range
[^+\-] ---x-- y negated escaped hyphen in range
[^+\-] ------ n negated escaped hyphen in range
["\\] \\ y escaped backslash
[\]] ] y escaped close bracket
[A-Z0-9] abcdef n two enumerated ranges
[A-Z0-9] abcDef y two enumerated ranges
a[[]b a[b y first char of charclass special
a[[]b ab n first char of charclass special
a[]]b a]b y first char of charclass special
a[]]b ab n first char of charclass special
a] a] y unmatched ] is ok
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