Daniel Grunwald
14 years ago
53 changed files with 307 additions and 672 deletions
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using ICSharpCode.AvalonEdit.Utils; |
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using System; |
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using System.IO; |
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namespace ICSharpCode.AvalonEdit.Document |
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{ |
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/// <summary>
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/// Interface for read-only access to a text source.
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/// </summary>
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/// <seealso cref="TextDocument"/>
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/// <seealso cref="StringTextSource"/>
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public interface ITextSource |
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{ |
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/// <summary>
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/// Gets the whole text as string.
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/// </summary>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Naming", "CA1721:PropertyNamesShouldNotMatchGetMethods")] |
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string Text { get; } |
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/// <summary>
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/// Is raised when the Text property changes.
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/// </summary>
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event EventHandler TextChanged; |
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/// <summary>
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/// Gets the total text length.
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/// </summary>
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/// <returns>The length of the text, in characters.</returns>
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/// <remarks>This is the same as Text.Length, but is more efficient because
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/// it doesn't require creating a String object.</remarks>
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int TextLength { get; } |
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/// <summary>
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/// Gets a character at the specified position in the document.
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/// </summary>
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/// <paramref name="offset">The index of the character to get.</paramref>
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/// <exception cref="ArgumentOutOfRangeException">Offset is outside the valid range (0 to TextLength-1).</exception>
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/// <returns>The character at the specified position.</returns>
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/// <remarks>This is the same as Text[offset], but is more efficient because
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/// it doesn't require creating a String object.</remarks>
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char GetCharAt(int offset); |
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/// <summary>
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/// Gets the index of the first occurrence of any character in the specified array.
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/// </summary>
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/// <param name="anyOf"></param>
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/// <param name="startIndex">Start index of the search.</param>
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/// <param name="count">Length of the area to search.</param>
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/// <returns>The first index where any character was found; or -1 if no occurrence was found.</returns>
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int IndexOfAny(char[] anyOf, int startIndex, int count); |
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/// <summary>
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/// Retrieves the text for a portion of the document.
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/// </summary>
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/// <exception cref="ArgumentOutOfRangeException">offset or length is outside the valid range.</exception>
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/// <remarks>This is the same as Text.Substring, but is more efficient because
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/// it doesn't require creating a String object for the whole document.</remarks>
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string GetText(int offset, int length); |
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/// <summary>
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/// Creates a snapshot of the current text.
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/// </summary>
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/// <remarks>
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/// This method is generally not thread-safe when called on a mutable text buffer, but the resulting text buffer is immutable and thread-safe.
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/// However, some implementing classes may provide additional thread-safety guarantees, see <see cref="TextDocument.CreateSnapshot()">TextDocument.CreateSnapshot</see>.
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/// </remarks>
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ITextSource CreateSnapshot(); |
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/// <summary>
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/// Creates a snapshot of a part of the current text.
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/// </summary>
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/// <remarks>
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/// This method is generally not thread-safe when called on a mutable text buffer, but the resulting text buffer is immutable and thread-safe.
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/// However, some implementing classes may provide additional thread-safety guarantees, see <see cref="TextDocument.CreateSnapshot()">TextDocument.CreateSnapshot</see>.
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/// </remarks>
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ITextSource CreateSnapshot(int offset, int length); |
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/// <summary>
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/// Creates a text reader.
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/// If the text is changed while a reader is active, the reader will continue to read from the old text version.
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/// </summary>
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TextReader CreateReader(); |
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} |
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/// <summary>
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/// Implements the ITextSource interface by wrapping another TextSource
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/// and viewing only a part of the text.
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/// </summary>
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[Obsolete("This class will be removed in a future version of AvalonEdit")] |
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public sealed class TextSourceView : ITextSource |
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{ |
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readonly ITextSource baseTextSource; |
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readonly ISegment viewedSegment; |
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/// <summary>
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/// Creates a new TextSourceView object.
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/// </summary>
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/// <param name="baseTextSource">The base text source.</param>
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/// <param name="viewedSegment">A text segment from the base text source</param>
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public TextSourceView(ITextSource baseTextSource, ISegment viewedSegment) |
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{ |
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if (baseTextSource == null) |
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throw new ArgumentNullException("baseTextSource"); |
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if (viewedSegment == null) |
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throw new ArgumentNullException("viewedSegment"); |
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this.baseTextSource = baseTextSource; |
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this.viewedSegment = viewedSegment; |
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} |
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/// <inheritdoc/>
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public event EventHandler TextChanged { |
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add { baseTextSource.TextChanged += value; } |
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remove { baseTextSource.TextChanged -= value; } |
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} |
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/// <inheritdoc/>
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public string Text { |
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get { |
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return baseTextSource.GetText(viewedSegment.Offset, viewedSegment.Length); |
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} |
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} |
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/// <inheritdoc/>
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public int TextLength { |
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get { return viewedSegment.Length; } |
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} |
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/// <inheritdoc/>
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public char GetCharAt(int offset) |
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{ |
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return baseTextSource.GetCharAt(viewedSegment.Offset + offset); |
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} |
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/// <inheritdoc/>
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public string GetText(int offset, int length) |
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{ |
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return baseTextSource.GetText(viewedSegment.Offset + offset, length); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot() |
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{ |
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return baseTextSource.CreateSnapshot(viewedSegment.Offset, viewedSegment.Length); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot(int offset, int length) |
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{ |
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return baseTextSource.CreateSnapshot(viewedSegment.Offset + offset, length); |
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} |
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/// <inheritdoc/>
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public TextReader CreateReader() |
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{ |
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return CreateSnapshot().CreateReader(); |
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} |
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/// <inheritdoc/>
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public int IndexOfAny(char[] anyOf, int startIndex, int count) |
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{ |
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int offset = viewedSegment.Offset; |
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int result = baseTextSource.IndexOfAny(anyOf, startIndex + offset, count); |
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return result >= 0 ? result - offset : result; |
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} |
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} |
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/// <summary>
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/// Implements the ITextSource interface using a string.
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/// </summary>
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public sealed class StringTextSource : ITextSource |
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{ |
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readonly string text; |
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/// <summary>
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/// Creates a new StringTextSource.
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/// </summary>
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public StringTextSource(string text) |
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{ |
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if (text == null) |
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throw new ArgumentNullException("text"); |
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this.text = text; |
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} |
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// Text can never change
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event EventHandler ITextSource.TextChanged { add {} remove {} } |
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/// <inheritdoc/>
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public string Text { |
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get { return text; } |
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} |
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/// <inheritdoc/>
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public int TextLength { |
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get { return text.Length; } |
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} |
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/// <inheritdoc/>
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public char GetCharAt(int offset) |
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{ |
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// GetCharAt must throw ArgumentOutOfRangeException, not IndexOutOfRangeException
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if (offset < 0 || offset >= text.Length) |
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throw new ArgumentOutOfRangeException("offset", offset, "offset must be between 0 and " + (text.Length - 1)); |
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return text[offset]; |
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} |
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/// <inheritdoc/>
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public string GetText(int offset, int length) |
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{ |
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return text.Substring(offset, length); |
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} |
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/// <inheritdoc/>
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public TextReader CreateReader() |
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{ |
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return new StringReader(text); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot() |
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{ |
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return this; // StringTextSource already is immutable
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot(int offset, int length) |
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{ |
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return new StringTextSource(text.Substring(offset, length)); |
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} |
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/// <inheritdoc/>
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public int IndexOfAny(char[] anyOf, int startIndex, int count) |
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{ |
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return text.IndexOfAny(anyOf, startIndex, count); |
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} |
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} |
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/// <summary>
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/// Implements the ITextSource interface using a rope.
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/// </summary>
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public sealed class RopeTextSource : ITextSource |
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{ |
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readonly Rope<char> rope; |
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/// <summary>
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/// Creates a new RopeTextSource.
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/// </summary>
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public RopeTextSource(Rope<char> rope) |
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{ |
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if (rope == null) |
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throw new ArgumentNullException("rope"); |
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this.rope = rope; |
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} |
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/// <summary>
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/// Returns a clone of the rope used for this text source.
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/// </summary>
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/// <remarks>
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/// RopeTextSource only publishes a copy of the contained rope to ensure that the underlying rope cannot be modified.
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/// Unless the creator of the RopeTextSource still has a reference on the rope, RopeTextSource is immutable.
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/// </remarks>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification="Not a property because it creates a clone")] |
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public Rope<char> GetRope() |
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{ |
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return rope.Clone(); |
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} |
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// Change event is not supported
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event EventHandler ITextSource.TextChanged { add {} remove {} } |
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/// <inheritdoc/>
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public string Text { |
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get { return rope.ToString(); } |
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} |
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/// <inheritdoc/>
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public int TextLength { |
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get { return rope.Length; } |
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} |
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/// <inheritdoc/>
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public char GetCharAt(int offset) |
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{ |
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return rope[offset]; |
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} |
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/// <inheritdoc/>
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public string GetText(int offset, int length) |
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{ |
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return rope.ToString(offset, length); |
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} |
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/// <inheritdoc/>
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public TextReader CreateReader() |
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{ |
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return new RopeTextReader(rope); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot() |
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{ |
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// we clone the underlying rope because the creator of the RopeTextSource might be modifying it
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return new RopeTextSource(rope.Clone()); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot(int offset, int length) |
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{ |
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return new RopeTextSource(rope.GetRange(offset, length)); |
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} |
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/// <inheritdoc/>
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public int IndexOfAny(char[] anyOf, int startIndex, int count) |
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{ |
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return rope.IndexOfAny(anyOf, startIndex, count); |
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} |
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} |
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} |
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@ -0,0 +1,103 @@ |
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System; |
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using System.IO; |
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using ICSharpCode.AvalonEdit.Utils; |
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using ICSharpCode.Editor; |
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namespace ICSharpCode.AvalonEdit.Document |
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{ |
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/// <summary>
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/// Implements the ITextSource interface using a rope.
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/// </summary>
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public sealed class RopeTextSource : ITextSource |
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{ |
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readonly Rope<char> rope; |
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/// <summary>
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/// Creates a new RopeTextSource.
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/// </summary>
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public RopeTextSource(Rope<char> rope) |
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{ |
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if (rope == null) |
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throw new ArgumentNullException("rope"); |
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this.rope = rope; |
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} |
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/// <summary>
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/// Returns a clone of the rope used for this text source.
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/// </summary>
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/// <remarks>
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/// RopeTextSource only publishes a copy of the contained rope to ensure that the underlying rope cannot be modified.
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/// Unless the creator of the RopeTextSource still has a reference on the rope, RopeTextSource is immutable.
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/// </remarks>
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[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1024:UsePropertiesWhereAppropriate", Justification="Not a property because it creates a clone")] |
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public Rope<char> GetRope() |
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{ |
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return rope.Clone(); |
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} |
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/// <inheritdoc/>
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public string Text { |
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get { return rope.ToString(); } |
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} |
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/// <inheritdoc/>
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public int TextLength { |
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get { return rope.Length; } |
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} |
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/// <inheritdoc/>
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public char GetCharAt(int offset) |
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{ |
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return rope[offset]; |
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} |
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/// <inheritdoc/>
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public string GetText(int offset, int length) |
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{ |
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return rope.ToString(offset, length); |
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} |
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/// <inheritdoc/>
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public TextReader CreateReader() |
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{ |
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return new RopeTextReader(rope); |
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} |
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/// <inheritdoc/>
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public TextReader CreateReader(int offset, int length) |
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{ |
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return new RopeTextReader(rope.GetRange(offset, length)); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot() |
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{ |
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// we clone the underlying rope because the creator of the RopeTextSource might be modifying it
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return new RopeTextSource(rope.Clone()); |
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} |
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/// <inheritdoc/>
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public ITextSource CreateSnapshot(int offset, int length) |
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{ |
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return new RopeTextSource(rope.GetRange(offset, length)); |
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} |
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/// <inheritdoc/>
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public int IndexOfAny(char[] anyOf, int startIndex, int count) |
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{ |
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return rope.IndexOfAny(anyOf, startIndex, count); |
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} |
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ITextSourceVersion ITextSource.Version { |
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get { return null; } |
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} |
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string ITextSource.GetText(ICSharpCode.Editor.ISegment segment) |
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{ |
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throw new NotImplementedException(); |
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} |
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} |
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} |
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@ -1,166 +0,0 @@ |
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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
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// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
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using System; |
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using System.Globalization; |
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namespace ICSharpCode.AvalonEdit.Document |
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{ |
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/// <summary>
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/// A line/column position.
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||||||
/// Text editor lines/columns are counted started from one.
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||||||
/// </summary>
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||||||
/// <remarks>
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||||||
/// The document provides the methods <see cref="TextDocument.GetLocation"/> and
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||||||
/// <see cref="TextDocument.GetOffset(TextLocation)"/> to convert between offsets and TextLocations.
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|
||||||
/// </remarks>
|
|
||||||
public struct TextLocation : IComparable<TextLocation>, IEquatable<TextLocation> |
|
||||||
{ |
|
||||||
/// <summary>
|
|
||||||
/// Represents no text location (0, 0).
|
|
||||||
/// </summary>
|
|
||||||
public static readonly TextLocation Empty = new TextLocation(0, 0); |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Creates a TextLocation instance.
|
|
||||||
/// <para>
|
|
||||||
/// Warning: the parameters are (line, column).
|
|
||||||
/// Not (column, line) as in ICSharpCode.TextEditor!
|
|
||||||
/// </para>
|
|
||||||
/// </summary>
|
|
||||||
public TextLocation(int line, int column) |
|
||||||
{ |
|
||||||
y = line; |
|
||||||
x = column; |
|
||||||
} |
|
||||||
|
|
||||||
int x, y; |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Gets the line number.
|
|
||||||
/// </summary>
|
|
||||||
public int Line { |
|
||||||
get { return y; } |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Gets the column number.
|
|
||||||
/// </summary>
|
|
||||||
public int Column { |
|
||||||
get { return x; } |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Gets whether the TextLocation instance is empty.
|
|
||||||
/// </summary>
|
|
||||||
public bool IsEmpty { |
|
||||||
get { |
|
||||||
return x <= 0 && y <= 0; |
|
||||||
} |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Gets a string representation for debugging purposes.
|
|
||||||
/// </summary>
|
|
||||||
public override string ToString() |
|
||||||
{ |
|
||||||
return string.Format(CultureInfo.InvariantCulture, "(Line {1}, Col {0})", this.x, this.y); |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Gets a hash code.
|
|
||||||
/// </summary>
|
|
||||||
public override int GetHashCode() |
|
||||||
{ |
|
||||||
return unchecked (87 * x.GetHashCode() ^ y.GetHashCode()); |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Equality test.
|
|
||||||
/// </summary>
|
|
||||||
public override bool Equals(object obj) |
|
||||||
{ |
|
||||||
if (!(obj is TextLocation)) return false; |
|
||||||
return (TextLocation)obj == this; |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Equality test.
|
|
||||||
/// </summary>
|
|
||||||
public bool Equals(TextLocation other) |
|
||||||
{ |
|
||||||
return this == other; |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Equality test.
|
|
||||||
/// </summary>
|
|
||||||
public static bool operator ==(TextLocation left, TextLocation right) |
|
||||||
{ |
|
||||||
return left.x == right.x && left.y == right.y; |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Inequality test.
|
|
||||||
/// </summary>
|
|
||||||
public static bool operator !=(TextLocation left, TextLocation right) |
|
||||||
{ |
|
||||||
return left.x != right.x || left.y != right.y; |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Compares two text locations.
|
|
||||||
/// </summary>
|
|
||||||
public static bool operator <(TextLocation left, TextLocation right) |
|
||||||
{ |
|
||||||
if (left.y < right.y) |
|
||||||
return true; |
|
||||||
else if (left.y == right.y) |
|
||||||
return left.x < right.x; |
|
||||||
else |
|
||||||
return false; |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Compares two text locations.
|
|
||||||
/// </summary>
|
|
||||||
public static bool operator >(TextLocation left, TextLocation right) |
|
||||||
{ |
|
||||||
if (left.y > right.y) |
|
||||||
return true; |
|
||||||
else if (left.y == right.y) |
|
||||||
return left.x > right.x; |
|
||||||
else |
|
||||||
return false; |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Compares two text locations.
|
|
||||||
/// </summary>
|
|
||||||
public static bool operator <=(TextLocation left, TextLocation right) |
|
||||||
{ |
|
||||||
return !(left > right); |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Compares two text locations.
|
|
||||||
/// </summary>
|
|
||||||
public static bool operator >=(TextLocation left, TextLocation right) |
|
||||||
{ |
|
||||||
return !(left < right); |
|
||||||
} |
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// Compares two text locations.
|
|
||||||
/// </summary>
|
|
||||||
public int CompareTo(TextLocation other) |
|
||||||
{ |
|
||||||
if (this == other) |
|
||||||
return 0; |
|
||||||
if (this < other) |
|
||||||
return -1; |
|
||||||
else |
|
||||||
return 1; |
|
||||||
} |
|
||||||
} |
|
||||||
} |
|
||||||
Loading…
Reference in new issue