46 lines
1.7 KiB
Dart
46 lines
1.7 KiB
Dart
// Copyright (C) 2022 WYATT GROUP
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// Please see the AUTHORS file for details.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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import 'package:wyatt_cli_toolbox/src/stylish/stylish.dart';
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/// Converts an rgb value of given [r], [g] and [b] int values
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/// to an ANSI usable color.
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int rgbToAnsiCode(int r, int g, int b) =>
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(((r.clamp(0, 255) / 255) * 5).toInt() * 36 +
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((g.clamp(0, 255) / 255) * 5).toInt() * 6 +
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((b.clamp(0, 255) / 255) * 5).toInt() +
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16)
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.clamp(0, 256);
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/// Regular Expression pattern for all possible types of ANSI escape
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/// sequences in a [String].
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final RegExp ansiPattern = RegExp(
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<String>[
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r'[\u001B\u009B][[\]()#;?]*(?:(?:(?:[a-zA-Z\d]*(?:;[-a-zA-Z\d\/#&.:=?%@~_]*)*)?\u0007)',
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r'(?:(?:\d{1,4}(?:;\d{0,4})*)?[\dA-PR-TZcf-ntqry=><~]))'
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].join('|'),
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);
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/// Formats a string if ansi escape sequences are supported.
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String Function(String) format(dynamic start, dynamic end) => (String x) {
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// if ((supportsAnsiColor || Stylish.forced) && Stylish.enabled) {
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if (Stylish.enabled) {
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return '\x1B[${start}m$x\x1B[${end}m';
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} else {
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return x;
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}
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};
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