35 lines
966 B
Plaintext
35 lines
966 B
Plaintext
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Character classes in regular expressions are a convenient way to match one of several possible characters by listing the allowed characters or ranges of characters. If a character class contains only one character, the effect is the same as just writing the character without a character class.
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Thus, having only one character in a character class is usually a simple oversight that remained after removing other characters of the class.
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== Noncompliant Code Example
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----
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/a[b]c/
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----
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== Compliant Solution
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----
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/abc/
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----
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== Exceptions
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This rule does not raise when the character inside the class is a metacharacter. This notation is sometimes used to avoid escaping (e.g., ``++[.]{3}++`` to match three dots).
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Replace this character class by the character itself.
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=== Highlighting
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The character class.
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endif::env-github,rspecator-view[]
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