Glob class followed by a literal ] swallows it: *[[][0-9]] matches "items[3" but not "items[3]" #172

What's wrong

When a bracket class is followed directly by a literal ], DotNet.Glob reads that ] as part of the class instead of as the next character. The class becomes "these members or ]", and the pattern needs one character fewer than the user wrote.

ExpandGlobClasses (TextFilter/TextFilter.cs, FindGlobClassEnd) correctly closes the class at the first ]. It then appends the rest of the token unchanged, so DotNet.Glob still sees ]] and misreads it. When the class gets rewritten as a list, the two readings disagree too. *[[][0-9a-f]] is expanded to *[[][0123456789abcdef]], and through TextFilter that matches "h[c" (True), while plain DotNet.Glob on the unexpanded pattern gives False.

The most natural way to search for an indexed name hits this: [[] for a literal [, a class for the index, then ].

Failure scenario

I compiled TextFilter.cs at f681291 against DotNet.Glob 3.1.3 and ran IsMatch(text, pattern, Glob, ByWholeString):

With the default options, Filter(["items[3]", "items[3", "notes.txt"], "*[[][0-9]]") returns only items[3. The excluded form -*[[][0-9]] keeps items[3], which it was written to hide.

Patterns where something else comes between the class and the ] are unaffected. For example, *[[]DEBUG]* matches x[DEBUG]y correctly.

Suggested fix / acceptance criteria

• In ExpandGlobClasses, after a class closes at close, emit each ] that follows it as the one-member class []] instead of a bare ]. DotNet.Glob already reads []] correctly: a[]]b matches a]b. Tried on a local copy:
  • *[[][0-9][]] matches items[3] and not items[3
  • [a][]] matches a] and not a
  • [a][]][]] matches a]]
• The shortcut if (!token.Contains(']')) return token; still holds, but a token that contains a class must go through this rewrite even when the class needs no list expansion.
• Add tests for every row of the table under both case sensitivities, plus the Filter/excluded-token cases above.
• Related: open PR Match an unclosed glob bracket literally [patch] #165 rewrites an unclosed [ as [[] in the same loop. This is the mirror case, a stray ] after a closed class, and it is not covered there.