The square bracket operator behaves differently depending on the context.
From the en.wikipedia.org
Looking good, I've updated the test page to remove the extra square bracket pairs on the edit links.
From the en.wikipedia.org
In modern American usage this is usually the square bracket.
From the en.wikipedia.org
It introduced the square bracket syntax for linking words that was later adopted by many other wiki engines, such as MediaWiki.
From the en.wikipedia.org
Rules can be written with just the individual sound to be changed, but using square bracket notation allows the rule to apply to a class of related sounds.
From the en.wikipedia.org
While this is clearly technically possible, the need to confirm that it's a single square bracket, not a double one, would probably take more time.
From the en.wikipedia.org
To indicate that one of the endpoints is to be excluded from the set, the corresponding square bracket can be either replaced with a parenthesis, or reversed.
From the en.wikipedia.org
There are a smaller number of projects in the 200-500 square meter bracket under construction.
From the en.wikipedia.org
In London the construction of finished retrofit basements is big business with a large number of projects in the 100-200 square meter bracket.