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std::regex_traits::transform

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< cpp‎ | regex‎ | regex traits

 
 
Expresiones biblioteca Regular
Clases
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Classes
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basic_regex(C++11)
sub_match(C++11)
match_results(C++11)
Algoritmos
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Algorithms
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regex_match(C++11)
regex_search(C++11)
regex_replace(C++11)
Los iteradores
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Iterators
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regex_iterator(C++11)
regex_token_iterator(C++11)
Excepciones
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Exceptions
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regex_error(C++11)
Rasgos
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Traits
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regex_traits(C++11)
Constantes
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Constants
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syntax_option_type(C++11)
match_flag_type(C++11)
error_type(C++11)
 
 
template< class ForwardIt >
string_type transform( ForwardIt first, ForwardIt last) const
Obtiene la clave de clasificación para la secuencia de caracteres [first, last), de manera que si una clave de clasificación compara menor que otro criterio de ordenación con operator<, la secuencia de caracteres que produjo la primera clave de ordenación viene antes de la secuencia de caracteres que produjo la segunda clave de ordenación, en la actualidad locale imbuido de orden de clasificación .
Original:
Obtains the sort key for the character sequence [first, last), such that if a sort key compares less than another sort key with operator<, then the character sequence that produced the first sort key comes before the character sequence that produced the second sort key, in the currently imbued locale's collation order.
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Por ejemplo, cuando la bandera std::regex_constants::collate regex se establece, entonces la secuencia [a-b] coincidiría con un poco de carácter c1 si traits.transform("a") <= traits.transform(c1) <= traits.transform("b"). Tenga en cuenta que esta función toma una secuencia de caracteres como argumento para dar cabida a los rangos definidos como [[.ae.]-d] .
Original:
For example when the regex flag std::regex_constants::collate is set, then the sequence [a-b] would match some character c1 if traits.transform("a") <= traits.transform(c1) <= traits.transform("b"). Note that this function takes a character sequence as the argument to accomodate to the ranges defined like [[.ae.]-d].
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Especializaciones biblioteca estándar de std::regex_traits retorno std::use_facet<std::collate<CharT>>(getloc()).transform(&*str.begin(), &*str.begin() + str.length()) por alguna cadena temporal str construido como string_type str(first, last) .
Original:
Standard library specializations of std::regex_traits return std::use_facet<std::collate<CharT>>(getloc()).transform(&*str.begin(), &*str.begin() + str.length()) for some temporary string str constructed as string_type str(first, last).
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[editar] Parámetros

first, last -
un par de ForwardIterators que determina la secuencia de caracteres a comparar
Original:
a pair of ForwardIterators which determines the sequence of characters to compare
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Type requirements
-
ForwardIt must meet the requirements of ForwardIterator.

[editar] Valor de retorno

La clave de intercalación para la [first, last) secuencia de caracteres en la configuración regional seleccionada imbuido .
Original:
The collation key for the character sequence [first, last) in the currently imbued locale.
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[editar] Ejemplo