mirror of
https://github.com/ShareX/ShareX.git
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246 lines
No EOL
7.3 KiB
C#
246 lines
No EOL
7.3 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (C) 2007-2014 ShareX Developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using System;
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using System.Text;
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namespace HelpersLib
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{
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public static class StringExtensions
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{
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public static string Left(this string str, int length)
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{
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if (length < 1) return string.Empty;
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if (length < str.Length) return str.Substring(0, length);
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return str;
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}
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public static string Right(this string str, int length)
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{
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if (length < 1) return string.Empty;
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if (length < str.Length) return str.Substring(str.Length - length);
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return str;
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}
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public static string RemoveLeft(this string str, int length)
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{
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if (length < 1) return string.Empty;
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if (length < str.Length) return str.Remove(0, length);
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return str;
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}
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public static string RemoveRight(this string str, int length)
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{
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if (length < 1) return string.Empty;
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if (length < str.Length) return str.Remove(str.Length - length);
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return str;
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}
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public static string Between(this string text, string first, string last, bool isFirstMatchForEnd = false, bool includeFirstAndLast = false)
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{
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int start = text.IndexOf(first);
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if (start < 0) return null;
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if (!includeFirstAndLast) start += first.Length;
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text = text.Substring(start);
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int end = isFirstMatchForEnd ? text.IndexOf(last) : text.LastIndexOf(last);
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if (end < 0) return null;
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if (includeFirstAndLast) end += last.Length;
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return text.Remove(end);
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}
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public static string Repeat(this string str, int count)
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{
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if (!string.IsNullOrEmpty(str) && count > 0)
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{
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StringBuilder sb = new StringBuilder(str.Length * count);
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for (int i = 0; i < count; i++)
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{
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sb.Append(str);
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}
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return sb.ToString();
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}
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return null;
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}
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public static string Replace(this string str, string oldValue, string newValue, StringComparison comparison)
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{
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if (string.IsNullOrEmpty(oldValue))
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{
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return str;
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}
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StringBuilder sb = new StringBuilder();
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int previousIndex = 0;
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int index = str.IndexOf(oldValue, comparison);
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while (index != -1)
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{
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sb.Append(str.Substring(previousIndex, index - previousIndex));
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sb.Append(newValue);
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index += oldValue.Length;
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previousIndex = index;
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index = str.IndexOf(oldValue, index, comparison);
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}
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sb.Append(str.Substring(previousIndex));
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return sb.ToString();
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}
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public static string ReplaceWith(this string str, string search, string replace,
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int occurrence = 0, StringComparison comparison = StringComparison.InvariantCultureIgnoreCase)
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{
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if (!string.IsNullOrEmpty(search))
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{
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int count = 0, location;
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while (occurrence == 0 || occurrence > count)
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{
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location = str.IndexOf(search, comparison);
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if (location < 0) break;
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count++;
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str = str.Remove(location, search.Length).Insert(location, replace);
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}
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}
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return str;
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}
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public static bool ReplaceFirst(this string text, string search, string replace, out string result)
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{
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int location = text.IndexOf(search);
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if (location < 0)
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{
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result = text;
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return false;
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}
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result = text.Remove(location, search.Length).Insert(location, replace);
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return true;
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}
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public static string ReplaceAll(this string text, string search, Func<string> replace)
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{
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while (true)
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{
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int location = text.IndexOf(search);
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if (location < 0) break;
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text = text.Remove(location, search.Length).Insert(location, replace());
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}
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return text;
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}
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public static string RemoveWhiteSpaces(this string str)
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{
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StringBuilder result = new StringBuilder();
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foreach (char c in str)
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{
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if (!Char.IsWhiteSpace(c)) result.Append(c);
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}
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return result.ToString();
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}
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public static string Reverse(this string str)
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{
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char[] chars = str.ToCharArray();
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Array.Reverse(chars);
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return new String(chars);
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}
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public static string Truncate(this string str, int length, string endings = "...")
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{
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if (length < 1) return string.Empty;
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if (length < str.Length)
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{
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str = str.Left(length - endings.Length);
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str += endings;
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}
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return str;
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}
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public static bool IsValidUrl(this string url)
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{
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return Uri.IsWellFormedUriString(url.Trim(), UriKind.Absolute);
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}
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public static byte[] HexToBytes(this string hex)
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{
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byte[] bytes = new byte[hex.Length / 2];
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for (int i = 0; i < bytes.Length; i++)
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{
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bytes[i] = Convert.ToByte(hex.Substring(i * 2, 2), 16);
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}
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return bytes;
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}
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public static string ParseQuoteString(this string str)
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{
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str = str.Trim();
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int firstQuote = str.IndexOf('"');
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if (firstQuote >= 0)
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{
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str = str.Substring(firstQuote + 1);
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int secondQuote = str.IndexOf('"');
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if (secondQuote >= 0)
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{
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str = str.Remove(secondQuote);
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}
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}
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return str;
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}
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public static bool IsNumber(this string text)
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{
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foreach (char c in text)
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{
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if (!char.IsNumber(c)) return false;
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}
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return true;
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}
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public static string[] Lines(this string text)
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{
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return text.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
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}
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}
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} |