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Viewing changes to contrib/ICSharpCode.NRefactory.CSharp/Formatter/Indent.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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contrib/ICSharpCode.NRefactory.CSharp/Formatter/Indent.cs
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// 
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// Indent.cs
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//  
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// Author:
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//       Mike Krüger <mkrueger@novell.com>
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// 
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// Copyright (c) 2010 Novell, Inc (http://www.novell.com)
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// 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// 
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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namespace ICSharpCode.NRefactory.CSharp
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{
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        public enum IndentType {
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                Block,
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                Continuation,
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                Label
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        }
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        public class Indent
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        {
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                readonly Stack<IndentType> indentStack = new Stack<IndentType> ();
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                readonly TextEditorOptions options;
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                int curIndent;
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                public Indent(TextEditorOptions options)
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                {
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                        this.options = options;
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                }
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                public void Push(IndentType type)
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                {
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                        indentStack.Push(type);
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                        curIndent += GetIndent(type);
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                        Update();
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                }
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                public void Pop()
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                {
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                        curIndent -= GetIndent(indentStack.Pop());
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                        Update();
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                }
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                int GetIndent(IndentType indentType)
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                {
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                        switch (indentType) {
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                                case IndentType.Block:
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                                        return options.IndentSize;
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                                case IndentType.Continuation:
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                                        return options.ContinuationIndent;
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                                case IndentType.Label:
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                                        return options.LabelIndent;
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                                default:
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                                        throw new ArgumentOutOfRangeException();
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                        }
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                }
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                void Update()
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                {
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                        if (options.TabsToSpaces) {
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                                indentString = new string(' ', curIndent);
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                                return;
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                        }
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                        indentString = new string('\t', curIndent / options.TabSize) + new string(' ', curIndent % options.TabSize) + new string (' ', ExtraSpaces);
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                }
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                int extraSpaces;
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                public int ExtraSpaces {
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                        get {
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                                return extraSpaces;
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                        }
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                        set {
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                                extraSpaces = value;
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                                Update();
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                        }
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                }
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                string indentString;
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                public string IndentString {
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                        get {
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                                return indentString;
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                        }
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                }
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                public override string ToString()
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                {
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                        return string.Format("[Indent: curIndent={0}]", curIndent);
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                }
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        }
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}