boost::urls::pct_encoded_rule

Rule for a string with percent‐encoded escapes

Synopsis

Declared in <include/boost/url/rfc/pct_encoded_rule.hpp>

template<class CharSet>
constexpr
    _implementation‐defined_
pct_encoded_rule(CharSet const& cs) noexcept;

Description

This function returns a rule which matches a percent‐encoded string, permitting characters in the string which are also in the specified character set to be used unescaped.

using value_type = pct_string_view;

Rules are used with the function

grammar::parse .

//  pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"

system::result< pct_string_view > rv = grammar::parse( "Program%20Files", pct_encoded_rule( pchars ) );
pct-encoded   = "%" HEXDIG HEXDIG

Parameters

Name Description

cs

The character set indicating which characters are allowed without escapes&period; Any character which is not in this set must be escaped, or else parsing returns an error&period;

See Also

grammar::parse , pchars , pct_string_view .

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