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40 lines
2.2 KiB
40 lines
2.2 KiB
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.md in the project root for license information.
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namespace Microsoft.AspNet.SignalR.Infrastructure
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{
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public interface IStringMinifier
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{
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/// <summary>
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/// Minifies a string in a way that can be reversed by this instance of <see cref="IStringMinifier"/>.
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/// </summary>
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/// <param name="value">The string to be minified</param>
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/// <returns>A minified representation of the <paramref name="value"/> without the following characters:,|\</returns>
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string Minify(string value);
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/// <summary>
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/// Reverses a <see cref="Minify"/> call that was executed at least once previously on this instance of
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/// <see cref="IStringMinifier"/> without any subsequent calls to <see cref="RemoveUnminified"/> sharing the
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/// same argument as the <see cref="Minify"/> call that returned <paramref name="value"/>.
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/// </summary>
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/// <param name="value">
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/// A minified string that was returned by a previous call to <see cref="Minify"/>.
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/// </param>
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/// <returns>
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/// The argument of all previous calls to <see cref="Minify"/> that returned <paramref name="value"/>.
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/// If every call to <see cref="Minify"/> on this instance of <see cref="IStringMinifier"/> has never
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/// returned <paramref name="value"/> or if the most recent call to <see cref="Minify"/> that did
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/// return <paramref name="value"/> was followed by a call to <see cref="RemoveUnminified"/> sharing
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/// the same argument, <see cref="Unminify"/> may return null but must not throw.
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/// </returns>
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string Unminify(string value);
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/// <summary>
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/// A call to this function indicates that any future attempt to unminify strings that were previously minified
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/// from <paramref name="value"/> may be met with a null return value. This provides an opportunity clean up
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/// any internal data structures that reference <paramref name="value"/>.
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/// </summary>
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/// <param name="value">The string that may have previously have been minified.</param>
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void RemoveUnminified(string value);
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}
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}
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