Class lut_chars
A set of characters
Synopsis
Declared in header <boost/url/grammar/lut_chars.hpp>
class lut_chars;Member Functions
Name |
Description |
Constructor |
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Return true if ch is in the character set. |
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Return a new character set which is the complement of another character set. |
Description
The characters defined by instances of this set are provided upon construction. The constexpr implementation allows these to become compile-time constants.
Example
Character sets are used with rules and the functions find_if and find_if_not .
constexpr lut_chars vowel_chars = "AEIOU" "aeiou";
system::result< core::string_view > rv = parse( "Aiea", token_rule( vowel_chars ) );See Also
find_if , find_if_not , parse , token_rule .