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|
// yt - A fully featured command line YouTube client
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
module.exports = grammar({
name: "yts",
rules: {
source_file: ($) => repeat(choice($.line, $.comment)),
line: ($) =>
seq(
$.command,
repeat($.flag),
$.id,
$.title,
$.date,
$.author,
$.duration,
$.url,
"\n",
),
command: ($) =>
choice(
"pick",
"p",
"watch",
"w",
"watched",
"wd",
"add",
"a",
"drop",
"d",
"url",
"u",
),
flag: ($) =>
choice(
/-\w [^\s]+/,
/-\w '[^']*'/,
/-\w "[^"]*"/,
/-\w=[^\s]+/,
/-\w='[^']*'/,
/-\w="[^"]*"/,
/--\w[\w-]+ [^\s]+/,
/--\w[\w-]+ '[^']*'/,
/--\w[\w-]+ "[^"]*"/,
/--\w[\w-]+=[^\s]+/,
/--\w[\w-]+='[^']*'/,
/--\w[\w-]+="[^"]*"/,
),
id: ($) => /[a-z0-9]+/,
title: ($) => seq($._q, /[^"]+/, $._q),
date: ($) => seq($._q, choice("[No release date]", /\d{4}-\d{2}-\d{2}/), $._q),
author: ($) => seq($._q, choice("[No author]", /[^"]+/), $._q),
duration: ($) =>
seq($._q, seq(choice("[No duration]", /\d+m \d+s/, /\d+h \d+m/)), $._q),
url: ($) => seq($._q, /[^"]+/, $._q),
comment: ($) => /#.*/,
_q: ($) => $.quote,
quote: ($) => /"/,
},
extras: ($) => [/\s/],
});
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