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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
using System;
using System.Collections.Generic;
using Tango.Scripting.Editors.Document;
namespace Tango.Scripting.Editors.Editing
{
/// <summary>
/// Determines whether the document can be modified.
/// </summary>
public interface IReadOnlySectionProvider
{
/// <summary>
/// Gets whether insertion is possible at the specified offset.
/// </summary>
bool CanInsert(int offset);
/// <summary>
/// Gets the deletable segments inside the given segment.
/// </summary>
/// <remarks>
/// All segments in the result must be within the given segment, and they must be returned in order
/// (e.g. if two segments are returned, EndOffset of first segment must be less than StartOffset of second segment).
///
/// For replacements, the last segment being returned will be replaced with the new text. If an empty list is returned,
/// no replacement will be done.
/// </remarks>
IEnumerable<ISegment> GetDeletableSegments(ISegment segment);
}
}
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