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grammar::delim_rule (1 of 2 overloads)

Match a character literal.

Synopsis

Defined in header <boost/url/grammar/delim_rule.hpp>

constexpr implementation-defined
delim_rule(
    char ch);

Description

This matches the specified character. The value is a reference to the character in the underlying buffer, expressed as a string_view. The function squelch may be used to turn this into void instead. If there is no more input, the error code error::need_more is returned.

Value Type

using value_type = string_view;

Example

Rules are used with the function parse.

result< string_view > rv = parse( ".", delim_rule('.') );

BNF

char        = %00-FF

Parameters

Name	Description
`ch`	The character to match

See Also

parse, squelch.

Convenience header <boost/url/grammar.hpp>