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6dd2ad4792
This will help move the miniscript / descriptor parsing functions out of the util library in an upcoming commit, so they are not exposed to libbitcoinkernel applications. Moving the Split functions should also make them more discoverable since they now close to related functions like Join. The functions are moved verbatim without any changes.
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
// Copyright (c) 2018-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_UTIL_SPANPARSING_H
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#define BITCOIN_UTIL_SPANPARSING_H
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#include <span.h>
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#include <util/string.h>
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#include <string>
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namespace spanparsing {
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/** Parse a constant.
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*
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* If sp's initial part matches str, sp is updated to skip that part, and true is returned.
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* Otherwise sp is unmodified and false is returned.
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*/
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bool Const(const std::string& str, Span<const char>& sp);
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/** Parse a function call.
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*
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* If sp's initial part matches str + "(", and sp ends with ")", sp is updated to be the
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* section between the braces, and true is returned. Otherwise sp is unmodified and false
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* is returned.
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*/
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bool Func(const std::string& str, Span<const char>& sp);
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/** Extract the expression that sp begins with.
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*
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* This function will return the initial part of sp, up to (but not including) the first
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* comma or closing brace, skipping ones that are surrounded by braces. So for example,
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* for "foo(bar(1),2),3" the initial part "foo(bar(1),2)" will be returned. sp will be
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* updated to skip the initial part that is returned.
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*/
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Span<const char> Expr(Span<const char>& sp);
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/** Split alias for backwards compatibility */
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template <typename... Args>
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auto Split(Args&&... args)
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{
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return ::Split(std::forward<Args>(args)...);
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}
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} // namespace spanparsing
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#endif // BITCOIN_UTIL_SPANPARSING_H
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