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Is there no way to only specify that you don't want that specific character?
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Is there no way to only specify that you don't want that specific character?

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Doh! Misread that. Looks perfect, thanks.
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Doh! Misread that. Looks perfect, thanks.

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Thats exactly what it is. [^[] would match any character but [ i.e. the reg ex would not match if there is a [ in it (in turn disallowing it).
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Thats exactly what it is. [^[] would match any character but [ i.e. the reg ex would not match if there is a [ in it (in turn disallowing it).

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Is it possible to specify that you don't want a specific character at a specific position in a regular expression?<br />
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In otherwords I want it to return true if the string is &quot;blahblahblah&quot; but not if it is blahblahblah[&quot; and only that one character should be disallowed.
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Is it possible to specify that you don't want a specific character at a specific position in a regular expression?

In otherwords I want it to return true if the string is "blahblahblah" but not if it is blahblahblah[" and only that one character should be disallowed.

Not Allowing Specific Character in Regular Expression

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.