C#实现格式化SQL语句的示例代码

public Form1()
        {
            InitializeComponent();
            Init();
        }
        #region 初始化配置
        ISqlTokenizer _tokenizer;
        ISqlTokenParser _parser;
        ISqlTreeFormatter _formatter;
        public void Init()
        {
            chk_default.Checked = true;
            _tokenizer = new BaiSqlFormatLib.Tokenizers.TSqlStandardTokenizer();
            _parser = new BaiSqlFormatLib.Parsers.TSqlStandardParser();
        }
        #endregion
        #region 格式化
        private void textBox1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == Keys.F6)
            {
                txt_format.DocumentText = Format(txt_sql.Text);
            }
        }
        private string Format(string inputSql)
        {
            SetFormatter();
            var tokenizedSql = _tokenizer.TokenizeSQL(inputSql, inputSql.Length);
            var parsedSql = _parser.ParseSQL(tokenizedSql);
            string subSqlHtml = _formatter.FormatSQLTree(parsedSql);
            return subSqlHtml;
        }
        /// <summary>
        /// 设置格式化属性
        /// </summary>
        private void SetFormatter()
        {
            ISqlTreeFormatter innerFormatter = new BaiSqlFormatLib.Formatters.TSqlStandardFormatter(new BaiSqlFormatLib.Formatters.TSqlStandardFormatterOptions
            {
                IndentString = "\\s\\s\\s\\s", //缩进内容
                SpacesPerTab = 4,
                MaxLineWidth = Convert.ToInt32(txt_maxWidth.Text), //单行字符串最大长度
                ExpandCommaLists = !chk_columnNotNewline.Checked,  //false 字段换行 
                KeywordAlign = chk_keywordAlign.Checked,     //字段对齐
                TrailingCommas = true,   //true 逗号在字段之后
                SpaceAfterExpandedComma = true,  //true 逗号后追加空格
                ExpandBooleanExpressions = chk_conditionNewline.Checked,  //true 条件换行
                ExpandCaseStatements = chk_expandCase.Checked,      //true case when换行
                ExpandBetweenConditions = chk_expandBetween.Checked,  //true between 换行
                ExpandInLists = chk_expandIn.Checked,   //true in 内容换行
                BreakJoinOnSections = chk_expandOn.Checked, //true join on中on 条件换行
                UppercaseKeywords = chk_uppercaseKeywords.Checked, //true 关键字大写
                AllUpper = chk_allUpper.Checked, //true 全部大写
                HTMLColoring = chk_coloring.Checked, //true HTML颜色标记 默认为true
                KeywordStandardization = true,//true 关键字标准化
                NewStatementLineBreaks = 2, //新语句换行数
                NewClauseLineBreaks = 1,//遇到关键字 换行数
                AllIndent = chk_allIndent.Checked, //整体缩进一个IndentString
                AsAlign = chk_asAlign.Checked, //true as对齐
                KeywordLengthOfAs = Convert.ToInt32(txt_asMaxWidth.Text)//as字段的最大长度
            });
            _formatter = new BaiSqlFormatLib.Formatters.HtmlPageWrapper(innerFormatter);
        }
        #endregion
        #region 页面配置
        private void chk_default_CheckedChanged(object sender, EventArgs e)
        {
            if (chk_default.Checked)
            {
                chk_custom.CheckState = CheckState.Unchecked;
                txt_maxWidth.Text = "170";
                chk_columnNotNewline.CheckState = CheckState.Unchecked;
                chk_keywordAlign.CheckState = CheckState.Checked;
                chk_conditionNewline.CheckState = CheckState.Checked;
                chk_expandCase.CheckState = CheckState.Checked;
                chk_expandBetween.CheckState = CheckState.Unchecked;
                chk_expandIn.CheckState = CheckState.Unchecked;
                chk_expandOn.CheckState = CheckState.Checked;
                chk_uppercaseKeywords.CheckState = CheckState.Unchecked;
                chk_allUpper.CheckState = CheckState.Unchecked;
                chk_coloring.CheckState = CheckState.Checked;
                chk_allIndent.CheckState = CheckState.Checked;
                chk_asAlign.CheckState = CheckState.Checked;
                txt_asMaxWidth.Text = "35";
                chk_addSemicolon.CheckState = CheckState.Checked;
                txt_maxWidth.Enabled = false;
                chk_columnNotNewline.Enabled = false;
                chk_keywordAlign.Enabled = false;
                chk_conditionNewline.Enabled = false;
                chk_expandCase.Enabled = false;
                chk_expandBetween.Enabled = false;
                chk_expandIn.Enabled = false;
                chk_expandOn.Enabled = false;
                chk_uppercaseKeywords.Enabled = false;
                chk_allUpper.Enabled = false;
                chk_coloring.Enabled = false;
                chk_allIndent.Enabled = false;
                chk_asAlign.Enabled = false;
                txt_asMaxWidth.Enabled = false;
                chk_addSemicolon.Enabled = false;
            }
            else
                chk_custom.CheckState = CheckState.Checked;
        }
        private void chk_custom_CheckedChanged(object sender, EventArgs e)
        {
            if (chk_custom.Checked)
            {
                chk_default.CheckState = CheckState.Unchecked;
                chk_columnNotNewline.Enabled = true;
                chk_keywordAlign.Enabled = true;
                chk_conditionNewline.Enabled = true;
                chk_expandCase.Enabled = true;
                chk_expandBetween.Enabled = true;
                chk_expandIn.Enabled = true;
                chk_expandOn.Enabled = true;
                chk_uppercaseKeywords.Enabled = true;
                chk_allUpper.Enabled = true;
                chk_coloring.Enabled = true;
                chk_allIndent.Enabled = true;
                chk_asAlign.Enabled = true;
                chk_addSemicolon.Enabled = true;
                txt_maxWidth.Enabled = true;
                txt_asMaxWidth.Enabled = true;
            }
            else
                chk_default.CheckState = CheckState.Checked;
        }
        #endregion