85 lines
2.1 KiB
C#
85 lines
2.1 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy 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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(at your option) any later version.
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dnSpy 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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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows;
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namespace dnSpy.AsmEditor.Hex {
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static class ClipboardUtils {
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public static byte[]? GetData(bool canBeEmpty) {
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string s;
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try {
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s = Clipboard.GetText();
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}
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catch (ExternalException) { return null; }
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if (s is null)
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return null;
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if (!canBeEmpty && s.Length == 0)
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return null;
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return HexStringToByteArray(s);
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}
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static byte[]? HexStringToByteArray(string s) {
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if (s is null)
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return null;
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if (s.Length % 2 != 0)
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return null;
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var bytes = new byte[s.Length / 2];
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for (int i = 0; i < s.Length; i += 2) {
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int hi = s[i] == '?' ? 0 : TryParseHexChar(s[i]);
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int lo = s[i + 1] == '?' ? 0 : TryParseHexChar(s[i + 1]);
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if (hi < 0 || lo < 0)
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return null;
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bytes[i / 2] = (byte)((hi << 4) | lo);
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}
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return bytes;
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}
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static int TryParseHexChar(char c) {
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if ('0' <= c && c <= '9')
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return c - '0';
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if ('a' <= c && c <= 'f')
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return c - 'a' + 10;
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if ('A' <= c && c <= 'F')
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return c - 'A' + 10;
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return -1;
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}
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public static string ToHexString(byte[] data) {
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if (data is null || data.Length == 0)
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return string.Empty;
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var sb = new StringBuilder(data.Length * 2);
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foreach (var b in data)
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sb.Append(b.ToString("X2"));
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return sb.ToString();
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}
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public static void SetText(string text) {
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try {
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Clipboard.SetText(text);
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}
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catch (ExternalException) { }
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}
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}
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}
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