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CodeDom Assistant

, 21 Sep 2007
Generating CodeDom Code By Parsing C# or VB
codedomassistant_demo.zip
CodeDomAssistant_Demo
CodeDomAssistant.exe
ICSharpCode.NRefactory.dll
RemoteLoader.dll
SciLexer.dll
ScintillaNet.dll
codedomassistant_src.zip
sln.CodeDomAssistant
CodeDomAssistant
bin
Debug
SciLexer.dll
Properties
Settings.settings
NRefactory
NRefactoryASTGenerator
AST
Project
Configuration
Resources
ICSharpCode.NRefactory.snk
Src
Ast
General
Lexer
BuildKeywords.pl
CSharp
Special
VBNet
Parser
CSharp
cs.ATG
Frames
Parser.frame
Scanner.frame
SharpCoco.exe
VBNet
VBNET.ATG
PrettyPrinter
CSharp
VBNet
Visitors
Test
General
Lexer
CSharp
VBNet
Output
CodeDOM
CSharp
VBNet
Parser
Expressions
GlobalScope
Statements
TypeLevel
RemoteLoader
Properties
ScintillaNET
Configuration
Builtin
LexerKeywordListNames
LexerStyleNames
FindReplace
Printing
Properties
Resources
DeleteHS.png
GoToNextMessage - Copy.png
GoToNextMessage.png
GoToPreviousMessage.png
LineColorHS.png
Thumbs.db
ScintillaNET.csproj.vspscc
Snippets
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.Reflection;
using System.IO;

namespace ScintillaNet
{
	[TypeConverterAttribute(typeof(System.ComponentModel.ExpandableObjectConverter))]
	public class Lexing : ScintillaHelperBase
	{
		private const string DEFAULT_WORDCHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_";
		private const string DEFAULT_WHITECHARS = " \t\r\n\0";
		private Dictionary<string, int> _styleNameMap = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
		private Dictionary<string, string> _lexerLanguageMap = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);


		internal Lexing(Scintilla scintilla)
			: base(scintilla) 
		{
			WhiteSpaceChars = DEFAULT_WHITECHARS;
			WordChars = DEFAULT_WORDCHARS;
			_keywords = new KeywordCollection(scintilla);

			//	Language names are a superset lexer names. For instance the c and cs (c#)
			//	langauges both use the cpp lexer (by default). Languages are kind of a 
			//	SCite concept, while Scintilla only cares about Lexers. However we don't
			//	need to explicetly map a language to a lexer if they are the same name
			//	like cpp.
			_lexerLanguageMap.Add("cs", "cpp");
			_lexerLanguageMap.Add("html", "hypertext");
			_lexerLanguageMap.Add("xml", "hypertext");
		}

		internal bool ShouldSerialize()
		{
			return ShouldSerializeLexerName() ||
				ShouldSerializeLexer() ||
				ShouldSerializeWhiteSpaceChars() ||
				ShouldSerializeWordChars();
		}

		#region Lexer
		public Lexer Lexer
		{
			get
			{
				return (Lexer)NativeScintilla.GetLexer();
			}
			set
			{
				NativeScintilla.SetLexer((int)value);
				_lexerName = value.ToString().ToLower();
				if (_lexerName == "null")
					_lexerName = "";

				loadStyleMap();
			}
		}

		private bool ShouldSerializeLexer()
		{
			return Lexer != Lexer.Container;
		}

		private void ResetLexer()
		{
			Lexer = Lexer.Container;
		}

		#endregion

		#region Language
		private string _lexerName = "container";
		public string LexerName
		{
			get
			{
				return _lexerName;
			}
			set
			{
				if (string.IsNullOrEmpty(value))
					value = "null";
					
				NativeScintilla.SetLexerLanguage(value.ToLower());

				_lexerName = value;

				loadStyleMap();
			}
		}

		private bool ShouldSerializeLexerName()
		{
			return LexerName != "container";
		}

		private void ResetLexerName()
		{
			LexerName = "container";
		} 
		#endregion

		private KeywordCollection _keywords;
		[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public KeywordCollection Keywords
		{
			get
			{
				return _keywords;
			}
		}


		public void LoadLexerLibrary(string path)
		{
			NativeScintilla.LoadLexerLibrary(path);
		}

		public void Colorize(int startPos, int endPos)
		{
			NativeScintilla.Colourise(startPos, endPos);
		}

		public void Colorize()
		{
			Colorize(0, -1);
		}

		public string GetProperty(string name)
		{
			string s;
			NativeScintilla.GetProperty(name, out s);
			return s;
		}

		public void SetProperty(string name, string value)
		{
			NativeScintilla.SetProperty(name, value);
		}

		public string GetPropertyExpanded(string name)
		{
			string s;
			NativeScintilla.GetPropertyExpanded(name, out s);
			return s;
		}

		public int GetPropertyInt(string name)
		{
			return GetPropertyInt(name, 0);
		}

		public int GetPropertyInt(string name, int defaultValue)
		{
			return NativeScintilla.GetPropertyInt(name, defaultValue);
		}

		public void SetKeywords(int keywordSet, string list)
		{
			NativeScintilla.SetKeywords(keywordSet, list);
		}


		#region WordChars
		private string _wordChars;
		internal char[] WordCharsArr = null;
		public string WordChars
		{
			get
			{				
				return _wordChars;
			}
			set
			{
				_wordChars = value;
				WordCharsArr = _wordChars.ToCharArray();
				NativeScintilla.SetWordChars(value);
			}
		}

		private bool ShouldSerializeWordChars()
		{
			return _wordChars != DEFAULT_WORDCHARS;
		}

		private void ResetWordChars()
		{
			WordChars = DEFAULT_WORDCHARS;
		}

		#endregion

		#region WhiteSpaceChars
		internal char[] WhiteSpaceCharsArr;
		private string _whiteSpaceChars;
		[TypeConverter(typeof(ScintillaNet.WhiteSpaceStringConverter))]
		public string WhiteSpaceChars
		{
			get
			{
				return _whiteSpaceChars;
			}
			set
			{
				_whiteSpaceChars = value;
				WhiteSpaceCharsArr = _whiteSpaceChars.ToCharArray();
				NativeScintilla.SetWhitespaceChars(value);
			}
		}

		private bool ShouldSerializeWhiteSpaceChars()
		{
			return _whiteSpaceChars != DEFAULT_WHITECHARS;
		}

		private void ResetWhiteSpaceChars()
		{
			_whiteSpaceChars = DEFAULT_WHITECHARS;
		} 
		#endregion


		private void loadStyleMap()
		{
			if (Scintilla.IsDesignMode)
				return;

			_styleNameMap.Clear();

			//	These are global constants that always apply
			_styleNameMap.Add("BRACEBAD",Constants.STYLE_BRACEBAD);
			_styleNameMap.Add("BRACELIGHT",Constants.STYLE_BRACELIGHT);
			_styleNameMap.Add("CALLTIP",Constants.STYLE_CALLTIP);
			_styleNameMap.Add("CONTROLCHAR",Constants.STYLE_CONTROLCHAR);
			_styleNameMap.Add("DEFAULT",Constants.STYLE_DEFAULT);
			_styleNameMap.Add("LINENUMBER",Constants.STYLE_LINENUMBER);

			string lexname = this.Lexer.ToString().ToLower();

			using (Stream s = GetType().Assembly.GetManifestResourceStream("ScintillaNet.Configuration.Builtin.LexerStyleNames." + lexname + ".txt"))
			{
				if (s == null)
					return;

				using (StreamReader sr = new StreamReader(s))
				{
					while (!sr.EndOfStream)
					{
						string[] arr = sr.ReadLine().Split('=');
						if (arr.Length != 2)
							continue;

						string key = arr[0].Trim();
						int value = int.Parse(arr[1].Trim());
						
						_styleNameMap.Remove(key);
						_styleNameMap.Add(key, value);
					}
				}
			}

		}

		[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public Dictionary<string, int> StyleNameMap
		{
			get
			{
				return _styleNameMap;
			}
		}

		[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public Dictionary<string, string> LexerLanguageMap
		{
			get
			{
				return _lexerLanguageMap;
			}
		}


		private string _lineCommentPrefix = string.Empty;
		public string LineCommentPrefix
		{
			get
			{
				return _lineCommentPrefix;
			}
			set
			{
				if (value == null)
					value = string.Empty;

				_lineCommentPrefix = value;
			}
		}

		private string _streamCommentPrefix = string.Empty;
		public string StreamCommentPrefix
		{
			get
			{
				return _streamCommentPrefix;
			}
			set
			{
				if (value == null)
					value = string.Empty;

				_streamCommentPrefix = value;
			}
		}

		private string _streamCommentSufix = string.Empty;
		public string StreamCommentSufix
		{
			get
			{
				return _streamCommentSufix;
			}
			set
			{
				if (value == null)
					value = string.Empty;

				_streamCommentSufix = value;
			}
		}

		public void LineComment()
		{
			if (string.IsNullOrEmpty(_lineCommentPrefix))
				return;

			//	So the theory behind line commenting is that for every selected line
			//	we look for the first non-whitespace character and insert the line
			//	comment prefix. Lines without non-whitespace are skipped.
			NativeScintilla.BeginUndoAction();

			Range selRange = Scintilla.Selection.Range;
			int start = selRange.StartingLine.Number;
			int end = selRange.EndingLine.Number;

			//	We're tracking the new end of the selection range including
			//	the amount it expands because we're inserting new text.
			int offset = _lineCommentPrefix.Length;

			for (int i = start; i <= end; i++)
			{
				Line l = Scintilla.Lines[i];
				int firstWordChar = findFirstNonWhitespaceChar(l.Text);
				if (firstWordChar >= 0)
				{
					Scintilla.InsertText(l.StartPosition + firstWordChar, _lineCommentPrefix);
					selRange.End += offset;
				}
			}

			NativeScintilla.EndUndoAction();

			//	An odd side-effect of InsertText is that we lose the current
			//	selection. This is undesirable. This is why we were tracking
			//	the end position offset.
			selRange.Select();
		}

		public void LineUncomment()
		{
			if (string.IsNullOrEmpty(_lineCommentPrefix))
				return;

			NativeScintilla.BeginUndoAction();

			//	Uncommenting is a lot like line commenting. However in addition
			//	to looking for a non-whitespace character, the string that follows
			//	it MUST be our line Comment Prefix. If this is the case the prefex
			//	is removed from the line at its position.
			Range selRange = Scintilla.Selection.Range;
			int start = selRange.StartingLine.Number;
			int end = selRange.EndingLine.Number;

			int offset = _lineCommentPrefix.Length;

			for (int i = start; i <= end; i++)
			{
				Line l = Scintilla.Lines[i];
				int firstWordChar = findFirstNonWhitespaceChar(l.Text);
				if (firstWordChar >= 0)
				{
					int startPos = l.StartPosition + firstWordChar;
					Range commentRange = Scintilla.GetRange(startPos, startPos + offset);
					if (commentRange.Text == _lineCommentPrefix)
						commentRange.Text = string.Empty;
				}
			}

			NativeScintilla.EndUndoAction();
		}

		public void ToggleLineComment()
		{
			if (string.IsNullOrEmpty(_lineCommentPrefix))
				return;

			NativeScintilla.BeginUndoAction();

			Range selRange = Scintilla.Selection.Range;
			int start = selRange.StartingLine.Number;
			int end = selRange.EndingLine.Number;

			int offset = _lineCommentPrefix.Length;

			for (int i = start; i <= end; i++)
			{
				Line l = Scintilla.Lines[i];
				int firstWordChar = findFirstNonWhitespaceChar(l.Text);
				if (firstWordChar >= 0)
				{
					int startPos = l.StartPosition + firstWordChar;
					Range commentRange = Scintilla.GetRange(startPos, startPos + offset);
					if (commentRange.Text == _lineCommentPrefix)
					{
						commentRange.Text = string.Empty;
						selRange.End -= offset;
					}
					else
					{
						Scintilla.InsertText(l.StartPosition + firstWordChar, _lineCommentPrefix);
						selRange.End += offset;
					}
				}
			}

			NativeScintilla.EndUndoAction();
			selRange.Select();
		}



		private int findFirstNonWhitespaceChar(string s)
		{
			for (int i = 0; i < s.Length; i++)
			{
				if (s[i].ToString().IndexOfAny(WhiteSpaceCharsArr) == -1)
					return i;
			}

			return -1;
		}

		public void StreamComment()
		{
			if (string.IsNullOrEmpty(_streamCommentPrefix) || string.IsNullOrEmpty(_streamCommentSufix))
				return;

			NativeScintilla.BeginUndoAction();
			
			Range selRange = Scintilla.Selection.Range;
			Scintilla.InsertText(selRange.Start, _streamCommentPrefix);
			Scintilla.InsertText(selRange.End+ _streamCommentPrefix.Length, _streamCommentSufix);
			selRange.End += _streamCommentPrefix.Length + _streamCommentSufix.Length;
			selRange.Select();

			NativeScintilla.EndUndoAction();
		}
	}


	public class KeywordCollection : ScintillaHelperBase
	{
		private Dictionary<string, string[]> _lexerKeywordListMap;
		private Dictionary<string, Dictionary<string, int>> _lexerStyleMap;
		private Dictionary<string, Lexer> _lexerAliasMap;

		internal KeywordCollection(Scintilla scintilla)
			: base(scintilla) 
		{
			//	Auugh, this plagued me for a while. Each of the lexers cna define their own "Name"
			//	and also asign themsleves to a Scintilla Lexer Constant. Most of the time these
			//	match the defined constant, but sometimes they don't. We'll always use the constant
			//	name since it's easier to use, consistent and will always have valid characters.
			//	However its still valid to access the lexers by this name (as SetLexerLanguage
			//	uses this value) so we'll create a lookup.
			_lexerAliasMap = new Dictionary<string, Lexer>(StringComparer.OrdinalIgnoreCase);
			
			//	I have no idea how Progress fits into this. It's defined with the PS lexer const
			//	and a name of "progress"

			_lexerAliasMap.Add("PL/M", Lexer.Plm);
			_lexerAliasMap.Add("props", Lexer.Properties);
			_lexerAliasMap.Add("inno", Lexer.InnoSetup);
			_lexerAliasMap.Add("clarion", Lexer.Clw);
			_lexerAliasMap.Add("clarionnocase", Lexer.ClwNoCase	);


			//_lexerKeywordListMap = new Dictionary<string,string[]>(StringComparer.OrdinalIgnoreCase);


			//_lexerKeywordListMap.Add("xml", new string[] { "HTML elements and attributes", "JavaScript keywords", "VBScript keywords", "Python keywords", "PHP keywords", "SGML and DTD keywords" });
			//_lexerKeywordListMap.Add("yaml", new string[] { "Keywords" });
			//	baan, kix, ave, scriptol, diff, props, makefile, errorlist, latex, null, lot, haskell
			//	lexers don't have keyword list names

			
		}

	
		private string[] _keywords = new string[] { "", "", "", "", "", "", "", "", "" };
		
		public string this[int keywordSet]
		{
			get
			{
				return _keywords[keywordSet];
			}
			set
            {
				_keywords[keywordSet] = value;
				NativeScintilla.SetKeywords(keywordSet, value);
            }
		}

		public string this[string keywordSetName]
		{
			get
			{
				return this[getKeyowrdSetIndex(keywordSetName)];
			}
			set
			{
				this[getKeyowrdSetIndex(keywordSetName)] = value;
			}
		}

		private int getKeyowrdSetIndex(string name)
		{
			string lexerName = Scintilla.Lexing.Lexer.ToString().ToLower();
			if (_lexerKeywordListMap.ContainsKey(lexerName))
				throw new ApplicationException("lexer " + lexerName + " does not support named keyword lists");

			int index = ((IList)_lexerKeywordListMap[lexerName]).IndexOf(name);

			if (index < 0)
				throw new ArgumentException("Keyword Set name does not exist for lexer " + lexerName, "keywordSetName");

			return index;
		}
	}
}


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raygilbert
Web Developer
Australia Australia
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Web02 | 2.8.141015.1 | Last Updated 21 Sep 2007
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