Difference between revisions of "cpp/regex/sub match"
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The class template {{tt|sub_match}} is used by the regular expression engine to denote sequences of characters matched by marked sub-expressions. | The class template {{tt|sub_match}} is used by the regular expression engine to denote sequences of characters matched by marked sub-expressions. | ||
| − | {{ | + | A match is a [begin, end) pair within the target range matched by the regular expression, but with additional observer functions to enhance code clarity. |
| + | |||
| + | Only the default constructor is publicly accessible: object of this class are normally constructed and populated as a part of a {{cpp|std::match_results}} container during the processing of one of the regex algorithms. | ||
| + | |||
| + | The member functions return defined default values unless the {{cpp|matched}} member is {{tt|true}}. | ||
Inherits {{cpp|std::pair<BidirectionalIterator, BidirectionalIterator>}} | Inherits {{cpp|std::pair<BidirectionalIterator, BidirectionalIterator>}} | ||
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===Non-member functions=== | ===Non-member functions=== | ||
{{dcl list begin}} | {{dcl list begin}} | ||
| + | {{dcl list template | cpp/regex/dcl list operator_comp | sub_match}} | ||
{{dcl list end}} | {{dcl list end}} | ||
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Revision as of 06:45, 21 October 2011
Template:cpp/regex/sub match/sidebar
| Defined in header <regex>
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| template< class BidirectionalIterator |
Template:mark c++11 feature | |
The class template sub_match is used by the regular expression engine to denote sequences of characters matched by marked sub-expressions.
A match is a [begin, end) pair within the target range matched by the regular expression, but with additional observer functions to enhance code clarity.
Only the default constructor is publicly accessible: object of this class are normally constructed and populated as a part of a Template:cpp container during the processing of one of the regex algorithms.
The member functions return defined default values unless the Template:cpp member is true.
Inherits Template:cpp
Several specializations for common character sequence types are provided:
Template:tdcl list begin Template:tdcl list header Template:tdcl list hitem Template:tdcl list item Template:tdcl list item Template:tdcl list item Template:tdcl list item Template:tdcl list end
Contents |
Member types
Template:tdcl list begin Template:tdcl list hitem Template:tdcl list item Template:tdcl list item Template:tdcl list item Template:tdcl list item Template:tdcl list end
Member functions
| constructs the match object (public member function) | |
Observers | |
| returns the length of the match, if any (public member function) | |
| cast to the underlying string type (public member function) | |
| returns the matched subsequence (public member function) | |
| compares matched subsequence (if any) (public member function) | |
Member objects | |
| defines whether this match was successful (public member object) | |
