111 lines
3.0 KiB
C#
111 lines
3.0 KiB
C#
//
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// System.Web.Util.StrUtils
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//
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// Author(s):
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// Gonzalo Paniagua Javier (gonzalo@ximian.com)
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//
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// (C) 2005 Novell, Inc, (http://www.novell.com)
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Globalization;
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using System.Text;
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namespace System.Web.Util {
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internal sealed class StrUtils
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{
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StrUtils () { }
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public static bool StartsWith (string str1, string str2)
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{
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return StartsWith (str1, str2, false);
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}
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public static bool StartsWith (string str1, string str2, bool ignore_case)
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{
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int l2 = str2.Length;
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if (l2 == 0)
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return true;
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int l1 = str1.Length;
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if (l2 > l1)
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return false;
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return (0 == String.Compare (str1, 0, str2, 0, l2, ignore_case, Helpers.InvariantCulture));
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}
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public static bool EndsWith (string str1, string str2)
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{
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return EndsWith (str1, str2, false);
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}
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public static bool EndsWith (string str1, string str2, bool ignore_case)
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{
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int l2 = str2.Length;
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if (l2 == 0)
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return true;
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int l1 = str1.Length;
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if (l2 > l1)
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return false;
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return (0 == String.Compare (str1, l1 - l2, str2, 0, l2, ignore_case, Helpers.InvariantCulture));
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}
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public static string EscapeQuotesAndBackslashes (string attributeValue)
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{
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StringBuilder sb = null;
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for (int i = 0; i < attributeValue.Length; i++) {
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char ch = attributeValue [i];
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if (ch == '\'' || ch == '"' || ch == '\\') {
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if (sb == null) {
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sb = new StringBuilder ();
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sb.Append (attributeValue.Substring (0, i));
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}
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sb.Append ('\\');
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sb.Append (ch);
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}
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else {
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if (sb != null)
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sb.Append (ch);
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}
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}
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if (sb != null)
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return sb.ToString ();
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return attributeValue;
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}
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public static bool IsNullOrEmpty (string value)
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{
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return String.IsNullOrEmpty (value);
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}
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public static string [] SplitRemoveEmptyEntries (string value, char [] separator)
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{
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return value.Split (separator, StringSplitOptions.RemoveEmptyEntries);
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}
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}
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}
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