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Copyright (C) 2019-2022 Aleo Systems Inc. This file is part of the Leo library.
The Leo library is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
The Leo library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the Leo library. If not, see https://www.gnu.org/licenses/.
Background on ABNF
ABNF is an Internet standard: for more info please checkout the README in this directory.
Format String
This ABNF grammar consists of one grammar: that describes how a Leo string-literal is parsed for formatting. Meaning in this context all characters are already parsed and we don't have to worry about escapes or etc.
not-brace = %x0-7A / %x7C / %x7E-10FFFF ; anything but { or }
format-string-container = "{}"
format-string-open-brace = "{{"
format-string-close-brace = "}}"
format-string-element = not-brace
/ format-string-container
/ format-string-open-brace
/ format-string-close-brace
format-string = *format-string-element