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[ABNF] Grammar for pre-testnet3 version.

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This is obtained by removing features from the grammar currently in the testnet3
branch.

The documentation comments have been removed to keep the file smaller and
simpler to read, as readers of this file should be already familiar with Leo.
Furthermore, that documentation material is being moved to the Leo Language
Reference.

This commit also folds the format string grammar (for console print strings)
into (a separate section of) the same file, again for simplicity. The previous
separate small file (and generated markdown) for format strings has thus been
removed.
This commit is contained in:
Alessandro Coglio 2022-03-16 21:39:17 -07:00
parent 6ca9a4d870
commit 5c1efa81f7
4 changed files with 87 additions and 1857 deletions
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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](./README.md) 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