std::regex_traits

From Cppreference

C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Regular expressions library
Classes basic_regex (C++11) sub_match (C++11) match_results (C++11) Algorithms regex_match (C++11) regex_search (C++11) regex_replace (C++11) Iterators regex_iterator (C++11) regex_token_iterator (C++11) Exceptions regex_error (C++11) Traits regex_traits (C++11) Constants syntax_option_type (C++11) match_flag_type (C++11) error_type (C++11)

Defined in header <string>
template<     class CharT > class regex_traits;

The regex_traits parameterizes behaviour of a regex.

This section is incomplete

[edit] Member types

Type	Definition
char_type	CharT
string_type	A std::basic_string parameterized on CharT.
locale_type	The locale used for localized behaviour in the regular expression.
char_class_type	Represents a character classification and is capable of holding an implementation specific set returned by lookup_classname.

[edit] Member functions

(constructor)	constructs the regex_traits object (public member function)
length	gets the localized length of a string (public member function)
translate	returns its input (public member function)
translate_nocase	converts a character to lower case (if defined) (public member function)
transform	converts a string into a localized collation sequence (public member function)
transform_primary	converts a string into a localized primary collation sequence (public member function)
lookup_collatename	gets a collation element by name (public member function)
lookup_classname	gets a character class by name (public member function)
isctype	indicates membership in a localized character class (public member function)
value	translates a numeric digit into an integral value (public member function)
imbue	sets the locale (public member function)
getloc	gets the locale (public member function)

Specializations for char and wchar_t are defined.