129 lines
5.2 KiB
C#
129 lines
5.2 KiB
C#
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// This file is part of CodingEditor.
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// Note: This project is derived from Peter Project
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// (hosted on sourceforge and codeplex)
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//
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// Copyright (c) 2008-2009, CE Team
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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using System.Collections.Generic;
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using System.Linq;
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using ICSharpCode.TextEditor.Document;
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namespace ICSharpCode.TextEditor.Src.Document.FoldingStrategy
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{
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public class JSONFoldingStrategy : IFoldingStrategy
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{
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#region Methods
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/// <summary>
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/// Generates the foldings for our document.
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/// </summary>
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/// <param name="document">The current document.</param>
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/// <param name="fileName">The filename of the document.</param>
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/// <param name="parseInformation">Extra parse information, not used in this sample.</param>
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/// <returns>A list of FoldMarkers.</returns>
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public List<FoldMarker> GenerateFoldMarkers(IDocument document, string fileName, object parseInformation)
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{
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var list = new List<FoldMarker>();
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var startLines = new Stack<int>();
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// Create foldmarkers for the whole document, enumerate through every line.
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for (int i = 0; i < document.TotalNumberOfLines; i++)
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{
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var seg = document.GetLineSegment(i);
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int offs, end = seg.Length + seg.Offset;
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char c;
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for (
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offs = seg.Offset;
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offs < end;
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offs++)
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{
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c = document.GetCharAt(offs);
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if (seg.Words.Any(w => w.IsDelimiter && w.Offset == offs - seg.Offset && w.Word == c.ToString()))
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{
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if (c == '{')
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{
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int offsetOfClosingBracket = SearchBracketForward(document, i, offs, '{', '}');
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if (offsetOfClosingBracket > 0)
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{
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int length = offsetOfClosingBracket - offs + 1;
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list.Add(new FoldMarker(document, offs, length, "{...}", false));
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}
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}
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if (c == '[')
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{
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int offsetOfClosingBracket = SearchBracketForward(document, i, offs, '[', ']');
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if (offsetOfClosingBracket > 0)
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{
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int length = offsetOfClosingBracket - offs + 1;
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list.Add(new FoldMarker(document, offs, length, "[...]", false));
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}
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}
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}
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}
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}
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return list;
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}
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private int SearchBracketForward(IDocument document, int currLine, int currOffset, char openBracket, char closingBracket)
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{
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// Create foldmarkers for the whole document, enumerate through every line.
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int brackets = 1, spaceCount = 0;
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for (int i = currLine; i < document.TotalNumberOfLines; i++)
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{
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var seg = document.GetLineSegment(i);
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int offs, end = seg.Length + seg.Offset;
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char c;
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for (
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offs = i == currLine ? currOffset + 1 : seg.Offset;
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offs < end;
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offs++)
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{
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c = document.GetCharAt(offs);
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if (c == ' ' || c == '\t' || c == '\n' || c == '\r') spaceCount++;
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if (seg.Words.Any(w => w.IsDelimiter && w.Offset == offs - seg.Offset && w.Word == c.ToString()))
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{
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if (c == openBracket)
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{
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++brackets;
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}
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else if (c == closingBracket)
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{
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--brackets;
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if (brackets == 0)
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{
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if (offs - spaceCount - 1 == currOffset)
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{
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return -1;
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}
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return offs;
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}
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}
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}
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}
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}
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return -1;
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}
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#endregion Methods
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}
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} |