mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-01-13 13:22:38 -03:00
aaaaad6ac9
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
// Copyright (c) 2018-2019 The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#ifndef BITCOIN_UTIL_SPANPARSING_H
|
|
#define BITCOIN_UTIL_SPANPARSING_H
|
|
|
|
#include <span.h>
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace spanparsing {
|
|
|
|
/** Parse a constant.
|
|
*
|
|
* If sp's initial part matches str, sp is updated to skip that part, and true is returned.
|
|
* Otherwise sp is unmodified and false is returned.
|
|
*/
|
|
bool Const(const std::string& str, Span<const char>& sp);
|
|
|
|
/** Parse a function call.
|
|
*
|
|
* If sp's initial part matches str + "(", and sp ends with ")", sp is updated to be the
|
|
* section between the braces, and true is returned. Otherwise sp is unmodified and false
|
|
* is returned.
|
|
*/
|
|
bool Func(const std::string& str, Span<const char>& sp);
|
|
|
|
/** Extract the expression that sp begins with.
|
|
*
|
|
* This function will return the initial part of sp, up to (but not including) the first
|
|
* comma or closing brace, skipping ones that are surrounded by braces. So for example,
|
|
* for "foo(bar(1),2),3" the initial part "foo(bar(1),2)" will be returned. sp will be
|
|
* updated to skip the initial part that is returned.
|
|
*/
|
|
Span<const char> Expr(Span<const char>& sp);
|
|
|
|
/** Split a string on every instance of sep, returning a vector.
|
|
*
|
|
* If sep does not occur in sp, a singleton with the entirety of sp is returned.
|
|
*
|
|
* Note that this function does not care about braces, so splitting
|
|
* "foo(bar(1),2),3) on ',' will return {"foo(bar(1)", "2)", "3)"}.
|
|
*/
|
|
std::vector<Span<const char>> Split(const Span<const char>& sp, char sep);
|
|
|
|
} // namespace spanparsing
|
|
|
|
#endif // BITCOIN_UTIL_SPANPARSING_H
|