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POXIS Extended Regular Expression Syntax

POSIX extended regular expressions can be constructed in Boost.Regex by passing the flag extended to the regex constructor.

boost::regex e1(my_expression boost::regex::extended);

See POSIX Extended Regular Expression Syntax for more information regarding:

• Wildcards
• Anchors
• Marked sub-expressions
• Repeats
• Alternation
• Character sets
• Escapes

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