Пример #1
0
        public void ColorText(WordPointer word, WordType type, TextPointer entered)
        {
            FirstTime = false;
            if (word.EndingPosition == null || word.StartingPoistion == null)
            {
                return;
            }
            workingBox.Selection.Select(word.StartingPoistion, word.EndingPosition);
            switch (type.type)
            {
            case WordType.boundType.TEXT:

                workingBox.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, textColor);

                break;

            case WordType.boundType.KEYWORD:
                workingBox.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, keyWordColor);
                break;

            case WordType.boundType.LEXERROR:
                workingBox.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, LexerColor);
                break;

            case WordType.boundType.COMMENT:
                workingBox.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.DarkGreen);
                break;

            case WordType.boundType.STRING:
                workingBox.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, Brushes.DarkOrange);
                break;
            }
            workingBox.Selection.Select(entered, entered);//in khat bayad bashe ta bad az in ke karemun tamum shod selection
            //bardashte beshe
            FirstTime = true;
        }
Пример #2
0
    public bool staticLexer()
    {
        FirstTime = false;
        bool lexError = false;

        currentTokenIndex = 0;
        if (listOfTokens.Count != 0)
        {
            listOfTokens.RemoveRange(0, listOfTokens.Count);
        }
        DFAOut output = new DFAOut();

        output.pointer = workingBox.Document.ContentStart.GetNextInsertionPosition(LogicalDirection.Forward);
        TextPointer starOfWord = workingBox.Document.ContentStart.GetNextInsertionPosition(LogicalDirection.Forward);
        WordPointer current;

        while (true)
        {
            output           = traceViaDFA(output.pointer);
            current          = new WordPointer(starOfWord, output.pointer);
            current.lexingOK = output.accept;
            if (output.text == "comment")
            {
                current.isComment = true;
            }
            if (output.text == "string")
            {
                current.isString = true;
            }

            if (current.text == "")    //traceDFA return "" when encouters with a delimeter
            {
                break;
            }
            if (current.lexingOK == false)
            {
                lexError = true;
            }
            if (current.text.Contains(">"))
            {
                current.text = current.text.Replace(">", "\\>");
            }
            if (current.text.Contains("<"))
            {
                current.text = current.text.Replace("<", "\\<");
            }
            if (current.text.Contains("$"))
            {
                current.text = current.text.Replace("<$", "\\$");
            }

            current.Type = output.text;

            if (current.text != "\r\n" && current.isComment == false && current.text != " ")
            {
                listOfTokens.Add(current);
            }
            starOfWord = output.pointer;
        }


        //This part is for coloring the text
        TextPointer enteredPosition = workingBox.Document.ContentStart;
        WordType    text3           = new WordType();

        text3.type = WordType.boundType.TEXT;

        for (int i = 0; i < listOfTokens.Count; i++)
        {
            visual.ColorText(listOfTokens[i], text3, enteredPosition);    //aval hame matn ro siah mikonim
        }

        text3.type = WordType.boundType.LEXERROR;

        for (int i = 0; i < listOfTokens.Count; i++)
        {
            if (listOfTokens[i].lexingOK == false)
            {
                visual.ColorText(listOfTokens[i], text3, enteredPosition);
            }
        }

        for (int i = 0; i < listOfTokens.Count; i++)
        {
            text3.type = WordType.boundType.KEYWORD;
            for (int j = 0; j < keyWords.Length; j++)
            {
                if (listOfTokens[i].text == keyWords[j])
                {
                    listOfTokens[i].Type = keyWords[j];
                    visual.ColorText(listOfTokens[i], text3, enteredPosition);    // yani range keyWordColor
                    break;
                }
            }
        }

        text3.type = WordType.boundType.COMMENT;
        for (int i = 0; i < listOfTokens.Count; i++)
        {
            if (listOfTokens[i].isComment == true)
            {
                visual.ColorText(listOfTokens[i], text3, enteredPosition);
            }
        }
        text3.type = WordType.boundType.STRING;
        for (int i = 0; i < listOfTokens.Count; i++)
        {
            if (listOfTokens[i].isString == true)
            {
                visual.ColorText(listOfTokens[i], text3, enteredPosition);
            }
        }

        currentTokenIndex = 0;

        FirstTime = true;
        return(lexError);
    }
Пример #3
0
    /// <summary>
    /// This function use for lexing while the user is typing the input, it might significantly reduce
    /// the speed.
    /// </summary>
    /// <param name="beforTextEnter"></param>
    /// <returns></returns>
    public bool getLastChar(TextPointer beforTextEnter)
    {
        if (FirstTime == false)
        {
            return(false);
        }
        FirstTime = false;
        bool        lexError = false;
        TextPointer currentPosition;
        TextPointer endOfCurrent = workingBox.Selection.End;

        currentPosition = workingBox.Selection.End.GetInsertionPosition(LogicalDirection.Backward);

        TextPointer      enteredPosition = currentPosition;
        GroupWordPointer GroupOfWords    = new GroupWordPointer(enteredPosition);


        if (currentPosition == null)
        {
            FirstTime = true;
            return(false);
        }
        TextPointer startOFWord = getCurrentChar(workingBox.Selection.Start, LogicalDirection.Backward);
        TextRange   delemiter   = new TextRange(workingBox.Selection.Start, startOFWord);
        string      text        = workingBox.Selection.Text;

        if (delemiter.Text == "")    //a delimeter here
        {
            if (startOFWord.GetNextInsertionPosition(LogicalDirection.Backward) != null)
            {
                if (new TextRange(startOFWord, startOFWord.GetNextInsertionPosition(LogicalDirection.Backward)).GetPropertyValue(TextElement.ForegroundProperty) == Brushes.DarkGreen)
                {
                    Brush brush = Brushes.DarkGreen;
                    startOFWord = getColorPoint(startOFWord, LogicalDirection.Backward, enteredPosition, Brushes.DarkGreen);
                }
                else if (new TextRange(startOFWord, startOFWord.GetNextInsertionPosition(LogicalDirection.Backward)).GetPropertyValue(TextElement.ForegroundProperty) == Brushes.DarkOrange)
                {
                    Brush brush = Brushes.DarkOrange;
                    startOFWord = getColorPoint(startOFWord, LogicalDirection.Backward, enteredPosition, brush);
                }
                else
                {
                    if (workingBox.Selection.Start.GetNextInsertionPosition(LogicalDirection.Backward) != null)
                    {
                        startOFWord = getCurrentChar(workingBox.Selection.Start.GetNextInsertionPosition(LogicalDirection.Backward), LogicalDirection.Backward);
                    }
                }
            }
        }
        else
        {
            if (startOFWord.GetNextInsertionPosition(LogicalDirection.Forward) != null)
            {
                if (new TextRange(startOFWord, startOFWord.GetNextInsertionPosition(LogicalDirection.Forward)).GetPropertyValue(TextElement.ForegroundProperty) == Brushes.DarkGreen)
                {
                    startOFWord = getColorPoint(startOFWord, LogicalDirection.Backward, enteredPosition, Brushes.DarkGreen);
                }
                else if (new TextRange(startOFWord, startOFWord.GetNextInsertionPosition(LogicalDirection.Forward)).GetPropertyValue(TextElement.ForegroundProperty) == Brushes.DarkOrange)
                {
                    startOFWord = getColorPoint(startOFWord, LogicalDirection.Backward, enteredPosition, Brushes.DarkOrange);
                }
            }
        }


        List <WordPointer> listOFWords = new List <WordPointer>();
        DFAOut             outPut      = new DFAOut();

        outPut.pointer = startOFWord;
        while (true)
        {
            outPut = traceViaDFA(startOFWord);
            WordPointer current = new WordPointer(startOFWord, outPut.pointer);
            current.lexingOK = outPut.accept;
            if (outPut.text == "comment")
            {
                current.isComment = true;
            }
            if (outPut.text == "string")
            {
                current.isString = true;
            }

            if (current.text == "")   //traceDFA returns "" when encounters a delimeter
            {
                break;
            }
            current.Type = outPut.text;
            if (current.lexingOK == false)
            {
                lexError = true;
            }
            GroupOfWords.addWord(current);
            listOFWords.Add(current);
            startOFWord = outPut.pointer;
        }
        workingBox.Selection.Select(enteredPosition, enteredPosition);

        WordType text3 = new WordType();

        text3.type = WordType.boundType.TEXT;

        for (int i = 0; i < GroupOfWords.arrayIndex; i++)
        {
            visual.ColorText(GroupOfWords.GroupOfWords[i], text3, enteredPosition);
        }

        text3.type = WordType.boundType.LEXERROR;

        for (int i = 0; i < GroupOfWords.arrayIndex; i++)
        {
            if (GroupOfWords.GroupOfWords[i].lexingOK == false)
            {
                visual.ColorText(GroupOfWords.GroupOfWords[i], text3, enteredPosition);
            }
        }

        for (int i = 0; i < GroupOfWords.arrayIndex; i++)
        {
            text3.type = WordType.boundType.KEYWORD;
            for (int j = 0; j < keyWords.Length; j++)
            {
                if (GroupOfWords.GroupOfWords[i].text == keyWords[j])
                {
                    GroupOfWords.GroupOfWords[i].Type = keyWords[j];
                    visual.ColorText(GroupOfWords.GroupOfWords[i], text3, enteredPosition);    // yani range keyWordColor
                    break;
                }
            }
        }

        text3.type = WordType.boundType.COMMENT;
        for (int i = 0; i < GroupOfWords.arrayIndex; i++)
        {
            if (GroupOfWords.GroupOfWords[i].isComment == true)
            {
                visual.ColorText(GroupOfWords.GroupOfWords[i], text3, enteredPosition);
            }
        }
        text3.type = WordType.boundType.STRING;
        for (int i = 0; i < GroupOfWords.arrayIndex; i++)
        {
            if (GroupOfWords.GroupOfWords[i].isString == true)
            {
                visual.ColorText(GroupOfWords.GroupOfWords[i], text3, enteredPosition);
            }
        }

        FirstTime = true;
        return(lexError);
    }