#region Apache License
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//
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// Licensed to the Apache Software Foundation (ASF) under one or more
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// contributor license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright ownership.
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// The ASF licenses this file to you under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance with
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// the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#endregion
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using System;
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using System.Text;
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using System.IO;
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using log4net.Util;
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using log4net.Core;
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namespace log4net.Util.PatternStringConverters
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{
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/// <summary>
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/// Writes a newline to the output
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/// </summary>
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/// <remarks>
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/// <para>
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/// Writes the system dependent line terminator to the output.
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/// This behavior can be overridden by setting the <see cref="PatternConverter.Option"/>:
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/// </para>
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/// <list type="definition">
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/// <listheader>
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/// <term>Option Value</term>
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/// <description>Output</description>
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/// </listheader>
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/// <item>
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/// <term>DOS</term>
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/// <description>DOS or Windows line terminator <c>"\r\n"</c></description>
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/// </item>
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/// <item>
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/// <term>UNIX</term>
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/// <description>UNIX line terminator <c>"\n"</c></description>
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/// </item>
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/// </list>
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/// </remarks>
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/// <author>Nicko Cadell</author>
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internal sealed class NewLinePatternConverter : LiteralPatternConverter, IOptionHandler
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{
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#region Implementation of IOptionHandler
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/// <summary>
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/// Initialize the converter
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/// </summary>
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/// <remarks>
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/// <para>
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/// This is part of the <see cref="IOptionHandler"/> delayed object
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/// activation scheme. The <see cref="ActivateOptions"/> method must
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/// be called on this object after the configuration properties have
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/// been set. Until <see cref="ActivateOptions"/> is called this
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/// object is in an undefined state and must not be used.
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/// </para>
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/// <para>
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/// If any of the configuration properties are modified then
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/// <see cref="ActivateOptions"/> must be called again.
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/// </para>
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/// </remarks>
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public void ActivateOptions()
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{
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if (string.Compare(Option, "DOS", true, System.Globalization.CultureInfo.InvariantCulture) == 0)
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{
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Option = "\r\n";
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}
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else if (string.Compare(Option, "UNIX", true, System.Globalization.CultureInfo.InvariantCulture) == 0)
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{
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Option = "\n";
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}
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else
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{
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Option = SystemInfo.NewLine;
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}
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}
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#endregion
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}
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}
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