std::regex_replace

<metanoindex/>

 

C++

Langage

Concepts

Bibliothèque d'utilitaires

Bibliothèque pour les chaînes de caractères

Bibliothèque de conteneurs

Bibliothèque d'algorithmes

Bibliothèque d'itérateurs

Bibliothèque pour le calcul numérique

Bibliothèque pour les entrées/sorties

Bibliothèque pour la régionalisation

Bibliothèque pour les expressions régulières (C++11)

Bibliothèque pour les opérations atomiques (C++11)

Bibliothèque pour les processus légers (threads) (C++11)

 

Regular expressions bibliothèque

Classes Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_regex (C++11)

sub_match (C++11)

match_results (C++11)

Algorithmes Original: Algorithms The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_match (C++11)

regex_search (C++11)

regex_replace (C++11)

Les itérateurs Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_iterator (C++11)

regex_token_iterator (C++11)

Exceptions Original: Exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_error (C++11)

Traits Original: Traits The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

regex_traits (C++11)

Constantes Original: Constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

syntax_option_type (C++11)

match_flag_type (C++11)

error_type (C++11)

 

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Déclaré dans l'en-tête <regex>
template< class OutputIt, class BidirIt, class Traits, class CharT, class STraits, class SAlloc > OutputIt regex_replace( OutputIt out, BidirIt first, BidirIt last, const std::basic_regex<CharT,Traits>& e, const std::basic_string<CharT,STraits,SAlloc>& fmt, std::regex_constants::match_flag_type flags = std::regex_constants::match_default );	(1)	(depuis C++11)
template< class OutputIt, class BidirIt, class Traits, class CharT > OutputIt regex_replace( OutputIt out, BidirIt first, BidirIt last, const std::basic_regex<CharT,Traits>& e, const CharT* fmt, std::regex_constants::match_flag_type flags = std::regex_constants::match_default );	(2)	(depuis C++11)
template< class Traits, class CharT, class STraits, class SAlloc, class FTraits, class FAlloc > std::basic_string<CharT,STraits,SAlloc> regex_replace( const std::basic_string<CharT,STraits,SAlloc>& s, const std::basic_regex<CharT,Traits>& e, const std::basic_string<CharT,FTraits,FAlloc>& fmt, std::regex_constants::match_flag_type flags = std::regex_constants::match_default );	(3)	(depuis C++11)
template< class Traits, class CharT, class STraits, class SAlloc > std::basic_string<CharT,STraits,SAlloc> regex_replace( const std::basic_string<CharT,STraits,SAlloc>& s, const std::basic_regex<CharT,Traits>& e, const CharT* fmt, std::regex_constants::match_flag_type flags = std::regex_constants::match_default );	(4)	(depuis C++11)
template< class Traits, class CharT, class STraits, class SAlloc > std::basic_string<CharT> regex_replace( const CharT* s, const std::basic_regex<CharT,Traits>& e, const std::basic_string<CharT,STraits,SAlloc>& fmt, std::regex_constants::match_flag_type flags = std::regex_constants::match_default );	(5)	(depuis C++11)
template< class Traits, class CharT > std::basic_string<CharT> regex_replace( const CharT* s, const std::basic_regex<CharT,Traits>& e, const CharT* fmt, std::regex_constants::match_flag_type flags = std::regex_constants::match_default );	(6)	(depuis C++11)

1)

Construit un objet std::regex_iterator i comme par std::regex_iterator<BidirIt, CharT, traits> i(first, last, e, flags), et l'utilise pour faire défiler tous les matches de e dans le [first,last) séquence. Pour chaque match de tels m, copie la sous-séquence non appariée (m.prefix()) dans out comme ça, et puis remplace la sous-séquence correspond à la chaîne de remplacement formaté comme si en appelant m.format(out, fmt, flags). En l'absence de plus de correspondances sont trouvées, copie les autres non appariés caractères out .

Original:

Constructs a std::regex_iterator object i as if by std::regex_iterator<BidirIt, CharT, traits> i(first, last, e, flags), and uses it to step through every match of e within the sequence [first,last). For each such match m, copies the non-matched subsequence (m.prefix()) into out as-is and then replaces the matched subsequence with the formatted replacement string as if by calling m.format(out, fmt, flags). When no more matches are found, copies the remaining non-matched characters to out.

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S'il n'y a aucune correspondance, copie la séquence entière en tant que out-est .

Original:

If there are no matches, copies the entire sequence into out as-is.

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Si flags contient std::regex_constants::format_no_copy, les séquences non appariées sont pas copiés dans out .

Original:

If flags contains std::regex_constants::format_no_copy, the non-matched subsequences are not copied into out.

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Si flags contient std::regex_constants::format_first_only, seule la première correspondance est remplacé .

Original:

If flags contains std::regex_constants::format_first_only, only the first match is replaced.

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2)

identique à 1), mais le remplacement en forme est réalisée comme en appelant m.format(out, fmt, fmt + char_traits<charT>::length(fmt), flags)

Original:

same as 1), but the formatted replacement is performed as if by calling m.format(out, fmt, fmt + char_traits<charT>::length(fmt), flags)

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3-4)

Construit une chaîne vide result de std::basic_string<CharT, ST, SA> type et appelle std::regex_replace(std::back_inserter(result), s.begin(), s.end(), e, fmt, flags) .

Original:

Constructs an empty string result of type std::basic_string<CharT, ST, SA> and calls std::regex_replace(std::back_inserter(result), s.begin(), s.end(), e, fmt, flags).

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5-6)

Construit une chaîne vide result de std::basic_string<CharT> type et appelle std::regex_replace(std::back_inserter(result), s, s + std::char_traits<CharT>::length(s), e, fmt, flags) .

Original:

Constructs an empty string result of type std::basic_string<CharT> and calls std::regex_replace(std::back_inserter(result), s, s + std::char_traits<CharT>::length(s), e, fmt, flags).

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Paramètres

first, last	-	la séquence de caractères d'entrée, représentée comme une paire d'itérateurs Original: the input character sequence, represented as a pair of iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
s	-	la séquence de caractères d'entrée, représenté comme std :: basic_string ou tableau de caractères Original: the input character sequence, represented as std::basic_string or character array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
e	-	le std :: basic_regex qui sera en correspondance avec la séquence d'entrée Original: the std::basic_regex that will be matched against the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
flags	-	les drapeaux du match de std::regex_constants::match_flag_type type Original: the match flags of type std::regex_constants::match_flag_type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fmt	-	la chaîne regex format de remplacement, la syntaxe exacte dépend de la valeur de flags Original: the regex replacement format string, exact syntax depends on the value of flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
out	-	itérateur de sortie pour stocker le résultat du remplacement Original: output iterator to store the result of the replacement The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Type requirements
- OutputIt must meet the requirements of OutputIterator.
- BidirIt must meet the requirements of BidirectionalIterator.

Retourne la valeur

1-2)

Renvoie une copie de l'itérateur de sortie out .

Original:

Returns a copy of the output iterator out.

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3-6)

Retourne la chaîne de caractères qui contient result la sortie .

Original:

Returns the string result which contains the output.

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Exceptions

Peut générer std::regex_error pour indiquer une condition d'erreur .

Original:

May throw std::regex_error to indicate an condition d'erreur.

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Exemple

#include <iostream>
#include <regex>
#include <string>
int main()
{
   std::string text = "Quick brown fox";
   std::regex vowel_re("a|o|e|u|i");
   std::cout << std::regex_replace(text, vowel_re, "[$&]") << '\n';
}

Résultat :

Q[u][i]ck br[o]wn f[o]x

Voir aussi

regex_search (C++11)	tente de faire correspondre une expression régulière de toute partie de la séquence de caractères Original: attempts to match a regular expression to any part of the character sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique)
match_flag_type (C++11)	options spécifiques à l'appariement Original: options specific to matching The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (typedef)