53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2019 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_GLOBULAR_H
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namespace ircd
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{
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// Globular ('*' and '?') expression utils.
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struct globular_imatch;
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struct globular_iequals;
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}
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/// Globular equals. This allows either side of the comparison to include '*'
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/// and '?' characters and equality of the string expressions will be
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/// determined. Case insensitive.
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struct ircd::globular_iequals
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:returns<bool>
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{
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using is_transparent = std::true_type;
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bool operator()(const string_view &a, const string_view &b) const noexcept;
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template<class A,
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class B>
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globular_iequals(A&& a, B&& b)
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:returns<bool>(operator()(std::forward<A>(a), std::forward<B>(b)))
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{}
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};
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/// Globular match. Similar to globular_equals but only one side of the
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/// comparison is considered to be the expression with '*' and '?' characters.
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/// The expression string is passed at construction. The comparison inputs are
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/// treated as non-expression strings. This allows for greater optimization
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/// than globular_equals. Case insensitive.
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struct ircd::globular_imatch
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{
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string_view a;
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bool operator()(const string_view &b) const noexcept;
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globular_imatch(const string_view &expr)
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:a{expr}
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{}
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};
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