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18.4.1 Word Operators

The operators in this section require Regex to recognize parts of words. Characters that are part of words, which are called word-constituent, are letters, digits, and the underscore (‘_’); more precisely, any character in the POSIX class alnum in the current locale, or underscore.

• The Match-word-boundary Operator (\b)
• The Match-within-word Operator (\B)
• The Match-beginning-of-word Operator (\<)
• The Match-end-of-word Operator (\>)
• The Match-word-constituent Operator (\w)
• The Match-non-word-constituent Operator (\W)