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Viewing changes to contrib/NRefactory/Project/Src/Lexer/Special/PreProcessingDirective.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/NRefactory/Project/Src/Lexer/Special/PreProcessingDirective.cs
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// <file>
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//     <copyright see="prj:///doc/copyright.txt"/>
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//     <license see="prj:///doc/license.txt"/>
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//     <owner name="none" email=""/>
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//     <version>$Revision: 4482 $</version>
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// </file>
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using System;
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using System.Collections.Generic;
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namespace ICSharpCode.OldNRefactory
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{
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        public class PreprocessingDirective : AbstractSpecial
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        {
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                #region Conversion C# <-> VB
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                public static void VBToCSharp(IList<ISpecial> list)
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                {
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                        for (int i = 0; i < list.Count; ++i) {
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                                if (list[i] is PreprocessingDirective)
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                                        list[i] = VBToCSharp((PreprocessingDirective)list[i]);
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                        }
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                }
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                public static PreprocessingDirective VBToCSharp(PreprocessingDirective dir)
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                {
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                        string cmd = dir.Cmd;
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                        string arg = dir.Arg;
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                        if (cmd.Equals("#End", StringComparison.InvariantCultureIgnoreCase)) {
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                                if (arg.ToLowerInvariant().StartsWith("region")) {
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                                        cmd = "#endregion";
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                                        arg = "";
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                                } else if ("if".Equals(arg, StringComparison.InvariantCultureIgnoreCase)) {
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                                        cmd = "#endif";
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                                        arg = "";
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                                }
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                        } else if (cmd.Equals("#Region", StringComparison.InvariantCultureIgnoreCase)) {
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                                cmd = "#region";
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                        } else if (cmd.Equals("#If", StringComparison.InvariantCultureIgnoreCase)) {
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                                cmd = "#if";
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                                if (arg.ToLowerInvariant().EndsWith(" then"))
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                                        arg = arg.Substring(0, arg.Length - 5);
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                        } else if (cmd.Equals("#Else", StringComparison.InvariantCultureIgnoreCase)) {
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                                if (dir.Expression != null)
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                                        cmd = "#elif";
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                                else
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                                        cmd = "#else";
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                        } else if (cmd.Equals("#ElseIf", StringComparison.InvariantCultureIgnoreCase)) {
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                                cmd = "#elif";
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                        }
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                        return new PreprocessingDirective(cmd, arg, dir.StartPosition, dir.EndPosition) {
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                                Expression = dir.Expression
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                        };
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                }
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                public static void CSharpToVB(List<ISpecial> list)
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                {
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                        for (int i = 0; i < list.Count; ++i) {
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                                if (list[i] is PreprocessingDirective)
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                                        list[i] = CSharpToVB((PreprocessingDirective)list[i]);
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                        }
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                }
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                public static PreprocessingDirective CSharpToVB(PreprocessingDirective dir)
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                {
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                        string cmd = dir.Cmd;
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                        string arg = dir.Arg;
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                        switch (cmd) {
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                                case "#region":
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                                        cmd = "#Region";
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                                        if (!arg.StartsWith("\"")) {
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                                                arg = "\"" + arg.Trim() + "\"";
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                                        }
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                                        break;
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                                case "#endregion":
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                                        cmd = "#End";
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                                        arg = "Region";
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                                        break;
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                                case "#endif":
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                                        cmd = "#End";
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                                        arg = "If";
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                                        break;
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                                case "#if":
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                                        arg += " Then";
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                                        break;
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                        }
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                        if (cmd.Length > 1) {
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                                cmd = cmd.Substring(0, 2).ToUpperInvariant() + cmd.Substring(2);
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                        }
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                        return new PreprocessingDirective(cmd, arg, dir.StartPosition, dir.EndPosition) {
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                                Expression = dir.Expression
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                        };
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                }
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                #endregion
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                string cmd;
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                string arg;
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                Ast.Expression expression = Ast.Expression.Null;
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                /// <summary>
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                /// Gets the directive name, including '#'.
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                /// </summary>
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                public string Cmd {
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                        get {
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                                return cmd;
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                        }
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                        set {
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                                cmd = value ?? string.Empty;
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                        }
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                }
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                /// <summary>
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                /// Gets the directive argument.
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                /// </summary>
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                public string Arg {
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                        get {
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                                return arg;
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                        }
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                        set {
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                                arg = value ?? string.Empty;
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                        }
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                }
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                /// <summary>
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                /// Gets/sets the expression (for directives that take an expression, e.g. #if and #elif).
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                /// </summary>
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                public Ast.Expression Expression {
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                        get { return expression; }
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                        set { expression = value ?? Ast.Expression.Null; }
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                }
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                /// <value>
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                /// The end position of the pre processor directive line.
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                /// May be != EndPosition.
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                /// </value>
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                public Location LastLineEnd {
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                        get;
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                        set;
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                }
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                public override string ToString()
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                {
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                        return String.Format("[PreProcessingDirective: Cmd = {0}, Arg = {1}]",
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                                             Cmd,
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                                             Arg);
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                }
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                public PreprocessingDirective(string cmd, string arg, Location start, Location end)
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                        : base(start, end)
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                {
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                        this.Cmd = cmd;
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                        this.Arg = arg;
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                }
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                public override object AcceptVisitor(ISpecialVisitor visitor, object data)
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                {
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                        return visitor.Visit(this, data);
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                }
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        }
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}