[\\[\\]a-zA-Z]+ to match a string with left or right bracket in it. However, the string-match function doesn’t match the ‘]’ character. To demonstrate with an example, try the following funciton: (string-match "[\\[\\]a-zA-Z]+" "Text[ab]”)
The result for the above function should have been a match structure with Text[ab] matched. However, the string-match returns #f which is incorrect. To test if the pattern I am using was right, I tried on regex101.com and it works. Here is the link that demonstrates that it works.
Hence, the above leads me to believe there is a bug in the regex library that mishandles ] character in character-classes
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Regards,
Abdulrahman Semrie