Style.cs

// ***********************************************************************
// Assembly         : Zeroit.Framework.CodeBox
// Author           : ZEROIT
// Created          : 03-19-2019
//
// Last Modified By : ZEROIT
// Last Modified On : 01-05-2019
// ***********************************************************************
// <copyright file="Style.cs" company="Zeroit Dev">
//    This program is for creating a Code Editor control.
//    Copyright ©  2017  Zeroit Dev Technologies
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, either version 3 of the License, or
//    (at your option) any later version.
//
//    This program is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program.  If not, see <https://www.gnu.org/licenses/>.
//
//    You can contact me at zeroitdevnet@gmail.com or zeroitdev@outlook.com
// </copyright>
// <summary></summary>
// ***********************************************************************
using System;
using System.Drawing;
using System.Text;

namespace Zeroit.Framework.CodeBox
{
    /// <summary>
    /// A style definition in a <see cref="Scintilla" /> control.
    /// </summary>
    public class Style
    {
        #region Constants

        /// <summary>
        /// Default style index. This style is used to define properties that all styles receive when calling <see cref="Scintilla.StyleClearAll" />.
        /// </summary>
        public const int Default = NativeMethods.STYLE_DEFAULT;

        /// <summary>
        /// Line number style index. This style is used for text in line number margins. The background color of this style also
        /// sets the background color for all margins that do not have any folding mask set.
        /// </summary>
        public const int LineNumber = NativeMethods.STYLE_LINENUMBER;

        /// <summary>
        /// Call tip style index. Only font name, size, foreground color, background color, and character set attributes
        /// can be used when displaying a call tip.
        /// </summary>
        public const int CallTip = NativeMethods.STYLE_CALLTIP;

        /// <summary>
        /// Indent guide style index. This style is used to specify the foreground and background colors of <see cref="Scintilla.IndentationGuides" />.
        /// </summary>
        public const int IndentGuide = NativeMethods.STYLE_INDENTGUIDE;

        /// <summary>
        /// Brace highlighting style index. This style is used on a brace character when set with the <see cref="Scintilla.BraceHighlight" /> method
        /// or the indentation guide when used with the <see cref="Scintilla.HighlightGuide" /> property.
        /// </summary>
        public const int BraceLight = NativeMethods.STYLE_BRACELIGHT;

        /// <summary>
        /// Bad brace style index. This style is used on an unmatched brace character when set with the <see cref="Scintilla.BraceBadLight" /> method.
        /// </summary>
        public const int BraceBad = NativeMethods.STYLE_BRACEBAD;

        /// <summary>
        /// Fold text tag style index. This is the style used for drawing text tags attached to folded text when
        /// <see cref="Scintilla.FoldDisplayTextSetStyle" /> and <see cref="Line.ToggleFoldShowText" /> are used.
        /// </summary>
        public const int FoldDisplayText = NativeMethods.STYLE_FOLDDISPLAYTEXT;

        #endregion Constants

        #region Fields

        private readonly ZeroitCodeExplorer Scintilla;

        #endregion Fields

        #region Methods

        /// <summary>
        /// Copies the current style to another style.
        /// </summary>
        /// <param name="destination">The <see cref="Style" /> to which the current style should be copied.</param>
        public void CopyTo(Style destination)
        {
            if (destination == null)
                return;

            destination.BackColor = BackColor;
            // destination.Bold = Bold;
            destination.Case = Case;
            destination.FillLine = FillLine;
            destination.Font = Font;
            destination.ForeColor = ForeColor;
            destination.Hotspot = Hotspot;
            destination.Italic = Italic;
            destination.Size = Size;
            destination.SizeF = SizeF;
            destination.Underline = Underline;
            destination.Visible = Visible;
            destination.Weight = Weight;
        }

        #endregion Methods

        #region Properties

        /// <summary>
        /// Gets or sets the background color of the style.
        /// </summary>
        /// <returns>A Color object representing the style background color. The default is White.</returns>
        /// <remarks>Alpha color values are ignored.</remarks>
        public Color BackColor
        {
            get
            {
                var color = Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETBACK, new IntPtr(Index), IntPtr.Zero).ToInt32();
                return ColorTranslator.FromWin32(color);
            }
            set
            {
                if (value.IsEmpty)
                    value = Color.White;

                var color = ColorTranslator.ToWin32(value);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETBACK, new IntPtr(Index), new IntPtr(color));
            }
        }

        /// <summary>
        /// Gets or sets whether the style font is bold.
        /// </summary>
        /// <returns>true if bold; otherwise, false. The default is false.</returns>
        /// <remarks>Setting this property affects the <see cref="Weight" /> property.</remarks>
        public bool Bold
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETBOLD, new IntPtr(Index), IntPtr.Zero) != IntPtr.Zero;
            }
            set
            {
                var bold = (value ? new IntPtr(1) : IntPtr.Zero);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETBOLD, new IntPtr(Index), bold);
            }
        }

        /// <summary>
        /// Gets or sets the casing used to display the styled text.
        /// </summary>
        /// <returns>One of the <see cref="StyleCase" /> enum values. The default is <see cref="StyleCase.Mixed" />.</returns>
        /// <remarks>This does not affect how text is stored, only displayed.</remarks>
        public StyleCase Case
        {
            get
            {
                var @case = Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETCASE, new IntPtr(Index), IntPtr.Zero).ToInt32();
                return (StyleCase)@case;
            }
            set
            {
                // Just an excuse to use @... syntax
                var @case = (int)value;
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETCASE, new IntPtr(Index), new IntPtr(@case));
            }
        }

        /// <summary>
        /// Gets or sets whether the remainder of the line is filled with the <see cref="BackColor" />
        /// when this style is used on the last character of a line.
        /// </summary>
        /// <returns>true to fill the line; otherwise, false. The default is false.</returns>
        public bool FillLine
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETEOLFILLED, new IntPtr(Index), IntPtr.Zero) != IntPtr.Zero;
            }
            set
            {
                var fillLine = (value ? new IntPtr(1) : IntPtr.Zero);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETEOLFILLED, new IntPtr(Index), fillLine);
            }
        }

        /// <summary>
        /// Gets or sets the style font name.
        /// </summary>
        /// <returns>The style font name. The default is Verdana.</returns>
        /// <remarks>Scintilla caches fonts by name so font names and casing should be consistent.</remarks>
        public string Font
        {
            get
            {
                var length = Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETFONT, new IntPtr(Index), IntPtr.Zero).ToInt32();
                var font = new byte[length];
                unsafe
                {
                    fixed (byte* bp = font)
                        Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETFONT, new IntPtr(Index), new IntPtr(bp));
                }

                var name = Encoding.UTF8.GetString(font, 0, length);
                return name;
            }
            set
            {
                if (string.IsNullOrEmpty(value))
                    value = "Verdana";

                // Scintilla expects UTF-8
                var font = Helpers.GetBytes(value, Encoding.UTF8, true);
                unsafe
                {
                    fixed (byte* bp = font)
                        Scintilla.DirectMessage(NativeMethods.SCI_STYLESETFONT, new IntPtr(Index), new IntPtr(bp));
                }
            }
        }

        /// <summary>
        /// Gets or sets the foreground color of the style.
        /// </summary>
        /// <returns>A Color object representing the style foreground color. The default is Black.</returns>
        /// <remarks>Alpha color values are ignored.</remarks>
        public Color ForeColor
        {
            get
            {
                var color = Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETFORE, new IntPtr(Index), IntPtr.Zero).ToInt32();
                return ColorTranslator.FromWin32(color);
            }
            set
            {
                if (value.IsEmpty)
                    value = Color.Black;

                var color = ColorTranslator.ToWin32(value);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETFORE, new IntPtr(Index), new IntPtr(color));
            }
        }

        /// <summary>
        /// Gets or sets whether hovering the mouse over the style text exhibits hyperlink behavior.
        /// </summary>
        /// <returns>true to use hyperlink behavior; otherwise, false. The default is false.</returns>
        public bool Hotspot
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETHOTSPOT, new IntPtr(Index), IntPtr.Zero) != IntPtr.Zero;
            }
            set
            {
                var hotspot = (value ? new IntPtr(1) : IntPtr.Zero);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETHOTSPOT, new IntPtr(Index), hotspot);
            }
        }

        /// <summary>
        /// Gets the zero-based style definition index.
        /// </summary>
        /// <returns>The style definition index within the <see cref="StyleCollection" />.</returns>
        public int Index { get; private set; }

        /// <summary>
        /// Gets or sets whether the style font is italic.
        /// </summary>
        /// <returns>true if italic; otherwise, false. The default is false.</returns>
        public bool Italic
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETITALIC, new IntPtr(Index), IntPtr.Zero) != IntPtr.Zero;
            }
            set
            {
                var italic = (value ? new IntPtr(1) : IntPtr.Zero);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETITALIC, new IntPtr(Index), italic);
            }
        }

        /// <summary>
        /// Gets or sets the size of the style font in points.
        /// </summary>
        /// <returns>The size of the style font as a whole number of points. The default is 8.</returns>
        public int Size
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETSIZE, new IntPtr(Index), IntPtr.Zero).ToInt32();
            }
            set
            {
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETSIZE, new IntPtr(Index), new IntPtr(value));
            }
        }

        /// <summary>
        /// Gets or sets the size of the style font in fractoinal points.
        /// </summary>
        /// <returns>The size of the style font in fractional number of points. The default is 8.</returns>
        public float SizeF
        {
            get
            {
                var fraction = Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETSIZEFRACTIONAL, new IntPtr(Index), IntPtr.Zero).ToInt32();
                return (float)fraction / NativeMethods.SC_FONT_SIZE_MULTIPLIER;
            }
            set
            {
                var fraction = (int)(value * NativeMethods.SC_FONT_SIZE_MULTIPLIER);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETSIZEFRACTIONAL, new IntPtr(Index), new IntPtr(fraction));
            }
        }

        /// <summary>
        /// Gets or sets whether the style is underlined.
        /// </summary>
        /// <returns>true if underlined; otherwise, false. The default is false.</returns>
        public bool Underline
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETUNDERLINE, new IntPtr(Index), IntPtr.Zero) != IntPtr.Zero;
            }
            set
            {
                var underline = (value ? new IntPtr(1) : IntPtr.Zero);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETUNDERLINE, new IntPtr(Index), underline);
            }
        }

        /// <summary>
        /// Gets or sets whether the style text is visible.
        /// </summary>
        /// <returns>true to display the style text; otherwise, false. The default is true.</returns>
        public bool Visible
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETVISIBLE, new IntPtr(Index), IntPtr.Zero) != IntPtr.Zero;
            }
            set
            {
                var visible = (value ? new IntPtr(1) : IntPtr.Zero);
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETVISIBLE, new IntPtr(Index), visible);
            }
        }

        /// <summary>
        /// Gets or sets the style font weight.
        /// </summary>
        /// <returns>The font weight. The default is 400.</returns>
        /// <remarks>Setting this property affects the <see cref="Bold" /> property.</remarks>
        public int Weight
        {
            get
            {
                return Scintilla.DirectMessage(NativeMethods.SCI_STYLEGETWEIGHT, new IntPtr(Index), IntPtr.Zero).ToInt32();
            }
            set
            {
                Scintilla.DirectMessage(NativeMethods.SCI_STYLESETWEIGHT, new IntPtr(Index), new IntPtr(value));
            }
        }

        #endregion Properties

        #region Constructors

        /// <summary>
        /// Initializes a new instances of the <see cref="Style" /> class.
        /// </summary>
        /// <param name="Scintilla">The <see cref="Scintilla" /> control that created this style.</param>
        /// <param name="index">The index of this style within the <see cref="StyleCollection" /> that created it.</param>
        public Style(ZeroitCodeExplorer Scintilla, int index)
        {
            this.Scintilla = Scintilla;
            Index = index;
        }

        #endregion Constructors

        #region Ada

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Ada" /> lexer.
        /// </summary>
        public static class Ada
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_ADA_DEFAULT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_ADA_COMMENTLINE;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_ADA_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_ADA_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_ADA_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_ADA_CHARACTER;

            /// <summary>
            /// Delimiter style index.
            /// </summary>
            public const int Delimiter = NativeMethods.SCE_ADA_DELIMITER;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_ADA_LABEL;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_ADA_IDENTIFIER;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_ADA_STRINGEOL;

            /// <summary>
            /// Unclosed character EOL style index.
            /// </summary>
            public const int CharacterEol = NativeMethods.SCE_ADA_CHARACTEREOL;

            /// <summary>
            /// Illegal identifier or keyword style index.
            /// </summary>
            public const int Illegal = NativeMethods.SCE_ADA_ILLEGAL;
        }

        #endregion Ada

        #region Asm

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Asm" /> lexer.
        /// </summary>
        public static class Asm
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_ASM_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_ASM_COMMENT;

            /// <summary>
            /// Comment block style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_ASM_COMMENTBLOCK;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_ASM_NUMBER;

            /// <summary>
            /// Math instruction (keword list 1) style index.
            /// </summary>
            public const int MathInstruction = NativeMethods.SCE_ASM_MATHINSTRUCTION;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_ASM_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_ASM_CHARACTER;

            /// <summary>
            /// CPU instruction (keyword list 0) style index.
            /// </summary>
            public const int CpuInstruction = NativeMethods.SCE_ASM_CPUINSTRUCTION;

            /// <summary>
            /// Register (keyword list 2) style index.
            /// </summary>
            public const int Register = NativeMethods.SCE_ASM_REGISTER;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_ASM_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_ASM_IDENTIFIER;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_ASM_STRINGEOL;

            /// <summary>
            /// Directive (keyword list 3) string style index.
            /// </summary>
            public const int Directive = NativeMethods.SCE_ASM_DIRECTIVE;

            /// <summary>
            /// Directive operand (keyword list 4) style index.
            /// </summary>
            public const int DirectiveOperand = NativeMethods.SCE_ASM_DIRECTIVEOPERAND;

            /// <summary>
            /// Extended instruction (keyword list 5) style index.
            /// </summary>
            public const int ExtInstruction = NativeMethods.SCE_ASM_EXTINSTRUCTION;

            /// <summary>
            /// Comment directive style index.
            /// </summary>
            public const int CommentDirective = NativeMethods.SCE_ASM_COMMENTDIRECTIVE;
        }

        #endregion Asm

        #region BlitzBasic

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.BlitzBasic" /> lexer.
        /// </summary>
        public static class BlitzBasic
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_B_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_B_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_B_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_B_KEYWORD;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_B_STRING;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_B_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_B_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_B_IDENTIFIER;

            /// <summary>
            /// Date style index.
            /// </summary>
            public const int Date = NativeMethods.SCE_B_DATE;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_B_STRINGEOL;

            /// <summary>
            /// Keyword list 2 (index 1) style index.
            /// </summary>
            public const int Keyword2 = NativeMethods.SCE_B_KEYWORD2;

            /// <summary>
            /// Keyword list 3 (index 2) style index.
            /// </summary>
            public const int Keyword3 = NativeMethods.SCE_B_KEYWORD3;

            /// <summary>
            /// Keyword list 4 (index 3) style index.
            /// </summary>
            public const int Keyword4 = NativeMethods.SCE_B_KEYWORD4;

            /// <summary>
            /// Constant style index.
            /// </summary>
            public const int Constant = NativeMethods.SCE_B_CONSTANT;

            /// <summary>
            /// Inline assembler style index.
            /// </summary>
            public const int Asm = NativeMethods.SCE_B_ASM;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_B_LABEL;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_B_ERROR;

            /// <summary>
            /// Hexadecimal number style index.
            /// </summary>
            public const int HexNumber = NativeMethods.SCE_B_HEXNUMBER;

            /// <summary>
            /// Binary number style index.
            /// </summary>
            public const int BinNumber = NativeMethods.SCE_B_BINNUMBER;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_B_COMMENTBLOCK;

            /// <summary>
            /// Documentation line style index.
            /// </summary>
            public const int DocLine = NativeMethods.SCE_B_DOCLINE;

            /// <summary>
            /// Documentation block style index.
            /// </summary>
            public const int DocBlock = NativeMethods.SCE_B_DOCBLOCK;

            /// <summary>
            /// Documentation keyword style index.
            /// </summary>
            public const int DocKeyword = NativeMethods.SCE_B_DOCKEYWORD;
        }

        #endregion BlitzBasic

        #region Batch

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Batch" /> lexer.
        /// </summary>
        public static class Batch
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_BAT_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_BAT_COMMENT;

            /// <summary>
            /// Keyword (list 0) style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_BAT_WORD;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_BAT_LABEL;

            /// <summary>
            /// Hide (@ECHO OFF/ON) style index.
            /// </summary>
            public const int Hide = NativeMethods.SCE_BAT_HIDE;

            /// <summary>
            /// External command (keyword list 1) style index.
            /// </summary>
            public const int Command = NativeMethods.SCE_BAT_COMMAND;

            /// <summary>
            /// Identifier string style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_BAT_IDENTIFIER;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_BAT_OPERATOR;
        }

        #endregion Batch

        #region Cpp

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Cpp" /> lexer.
        /// </summary>
        public static class Cpp
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_C_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_C_COMMENT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_C_COMMENTLINE;

            /// <summary>
            /// Documentation comment style index.
            /// </summary>
            public const int CommentDoc = NativeMethods.SCE_C_COMMENTDOC;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_C_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_C_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_C_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_C_CHARACTER;

            /// <summary>
            /// UUID style index.
            /// </summary>
            public const int Uuid = NativeMethods.SCE_C_UUID;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_C_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_C_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_C_IDENTIFIER;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_C_STRINGEOL;

            /// <summary>
            /// Verbatim string style index.
            /// </summary>
            public const int Verbatim = NativeMethods.SCE_C_VERBATIM;

            /// <summary>
            /// Regular expression style index.
            /// </summary>
            public const int Regex = NativeMethods.SCE_C_REGEX;

            /// <summary>
            /// Documentation comment line style index.
            /// </summary>
            public const int CommentLineDoc = NativeMethods.SCE_C_COMMENTLINEDOC;

            /// <summary>
            /// Keyword style 2 index.
            /// </summary>
            public const int Word2 = NativeMethods.SCE_C_WORD2;

            /// <summary>
            /// Comment keyword style index.
            /// </summary>
            public const int CommentDocKeyword = NativeMethods.SCE_C_COMMENTDOCKEYWORD;

            /// <summary>
            /// Comment keyword error style index.
            /// </summary>
            public const int CommentDocKeywordError = NativeMethods.SCE_C_COMMENTDOCKEYWORDERROR;

            /// <summary>
            /// Global class style index.
            /// </summary>
            public const int GlobalClass = NativeMethods.SCE_C_GLOBALCLASS;

            /// <summary>
            /// Raw string style index.
            /// </summary>
            public const int StringRaw = NativeMethods.SCE_C_STRINGRAW;

            /// <summary>
            /// Triple-quoted string style index.
            /// </summary>
            public const int TripleVerbatim = NativeMethods.SCE_C_TRIPLEVERBATIM;

            /// <summary>
            /// Hash-quoted string style index.
            /// </summary>
            public const int HashQuotedString = NativeMethods.SCE_C_HASHQUOTEDSTRING;

            /// <summary>
            /// Preprocessor comment style index.
            /// </summary>
            public const int PreprocessorComment = NativeMethods.SCE_C_PREPROCESSORCOMMENT;

            /// <summary>
            /// Preprocessor documentation comment style index.
            /// </summary>
            public const int PreprocessorCommentDoc = NativeMethods.SCE_C_PREPROCESSORCOMMENTDOC;

            /// <summary>
            /// User-defined literal style index.
            /// </summary>
            public const int UserLiteral = NativeMethods.SCE_C_USERLITERAL;

            /// <summary>
            /// Task marker style index.
            /// </summary>
            public const int TaskMarker = NativeMethods.SCE_C_TASKMARKER;

            /// <summary>
            /// Escape sequence style index.
            /// </summary>
            public const int EscapeSequence = NativeMethods.SCE_C_ESCAPESEQUENCE;
        }

        #endregion Cpp
        
        #region Css

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Css" /> lexer.
        /// </summary>
        public static class Css
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_CSS_DEFAULT;

            /// <summary>
            /// Tag style index.
            /// </summary>
            public const int Tag = NativeMethods.SCE_CSS_TAG;

            /// <summary>
            /// Class style index.
            /// </summary>
            public const int Class = NativeMethods.SCE_CSS_CLASS;

            /// <summary>
            /// Pseudo class style index.
            /// </summary>
            public const int PseudoClass = NativeMethods.SCE_CSS_PSEUDOCLASS;

            /// <summary>
            /// Unknown pseudo class style index.
            /// </summary>
            public const int UnknownPseudoClass = NativeMethods.SCE_CSS_UNKNOWN_PSEUDOCLASS;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_CSS_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_CSS_IDENTIFIER;

            /// <summary>
            /// Unknown identifier style index.
            /// </summary>
            public const int UnknownIdentifier = NativeMethods.SCE_CSS_UNKNOWN_IDENTIFIER;

            /// <summary>
            /// Value style index.
            /// </summary>
            public const int Value = NativeMethods.SCE_CSS_VALUE;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_CSS_COMMENT;

            /// <summary>
            /// ID style index.
            /// </summary>
            public const int Id = NativeMethods.SCE_CSS_ID;

            /// <summary>
            /// Important style index.
            /// </summary>
            public const int Important = NativeMethods.SCE_CSS_IMPORTANT;

            /// <summary>
            /// Directive style index.
            /// </summary>
            public const int Directive = NativeMethods.SCE_CSS_DIRECTIVE;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int DoubleString = NativeMethods.SCE_CSS_DOUBLESTRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int SingleString = NativeMethods.SCE_CSS_SINGLESTRING;

            /// <summary>
            /// Identifier style 2 index.
            /// </summary>
            public const int Identifier2 = NativeMethods.SCE_CSS_IDENTIFIER2;

            /// <summary>
            /// Attribute style index.
            /// </summary>
            public const int Attribute = NativeMethods.SCE_CSS_ATTRIBUTE;

            /// <summary>
            /// Identifier style 3 index.
            /// </summary>
            public const int Identifier3 = NativeMethods.SCE_CSS_IDENTIFIER3;

            /// <summary>
            /// Pseudo element style index.
            /// </summary>
            public const int PseudoElement = NativeMethods.SCE_CSS_PSEUDOELEMENT;

            /// <summary>
            /// Extended identifier style index.
            /// </summary>
            public const int ExtendedIdentifier = NativeMethods.SCE_CSS_EXTENDED_IDENTIFIER;

            /// <summary>
            /// Extended pseudo class style index.
            /// </summary>
            public const int ExtendedPseudoClass = NativeMethods.SCE_CSS_EXTENDED_PSEUDOCLASS;

            /// <summary>
            /// Extended pseudo element style index.
            /// </summary>
            public const int ExtendedPseudoElement = NativeMethods.SCE_CSS_EXTENDED_PSEUDOELEMENT;

            /// <summary>
            /// Media style index.
            /// </summary>
            public const int Media = NativeMethods.SCE_CSS_MEDIA;

            /// <summary>
            /// Variable style index.
            /// </summary>
            public const int Variable = NativeMethods.SCE_CSS_VARIABLE;
        }

        #endregion Css

        #region Fortran

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Fortran" /> lexer.
        /// </summary>
        public static class Fortran
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_F_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_F_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_F_NUMBER;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int String1 = NativeMethods.SCE_F_STRING1;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String2 = NativeMethods.SCE_F_STRING2;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_F_STRINGEOL;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_F_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_F_IDENTIFIER;

            /// <summary>
            /// Keyword (list 0) style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_F_WORD;

            /// <summary>
            /// Keyword 2 (list 1) style index.
            /// </summary>
            public const int Word2 = NativeMethods.SCE_F_WORD2;

            /// <summary>
            /// Keyword 3 (list 2) style index.
            /// </summary>
            public const int Word3 = NativeMethods.SCE_F_WORD3;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_F_PREPROCESSOR;

            /// <summary>
            /// Operator 2 style index.
            /// </summary>
            public const int Operator2 = NativeMethods.SCE_F_OPERATOR2;

            /// <summary>
            /// Label string style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_F_LABEL;

            /// <summary>
            /// Continuation style index.
            /// </summary>
            public const int Continuation = NativeMethods.SCE_F_CONTINUATION;
        }

        #endregion Fortran

        #region FreeBasic

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.FreeBasic" /> lexer.
        /// </summary>
        public static class FreeBasic
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_B_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_B_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_B_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_B_KEYWORD;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_B_STRING;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_B_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_B_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_B_IDENTIFIER;

            /// <summary>
            /// Date style index.
            /// </summary>
            public const int Date = NativeMethods.SCE_B_DATE;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_B_STRINGEOL;

            /// <summary>
            /// Keyword list 2 (index 1) style index.
            /// </summary>
            public const int Keyword2 = NativeMethods.SCE_B_KEYWORD2;

            /// <summary>
            /// Keyword list 3 (index 2) style index.
            /// </summary>
            public const int Keyword3 = NativeMethods.SCE_B_KEYWORD3;

            /// <summary>
            /// Keyword list 4 (index 3) style index.
            /// </summary>
            public const int Keyword4 = NativeMethods.SCE_B_KEYWORD4;

            /// <summary>
            /// Constant style index.
            /// </summary>
            public const int Constant = NativeMethods.SCE_B_CONSTANT;

            /// <summary>
            /// Inline assembler style index.
            /// </summary>
            public const int Asm = NativeMethods.SCE_B_ASM;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_B_LABEL;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_B_ERROR;

            /// <summary>
            /// Hexadecimal number style index.
            /// </summary>
            public const int HexNumber = NativeMethods.SCE_B_HEXNUMBER;

            /// <summary>
            /// Binary number style index.
            /// </summary>
            public const int BinNumber = NativeMethods.SCE_B_BINNUMBER;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_B_COMMENTBLOCK;

            /// <summary>
            /// Documentation line style index.
            /// </summary>
            public const int DocLine = NativeMethods.SCE_B_DOCLINE;

            /// <summary>
            /// Documentation block style index.
            /// </summary>
            public const int DocBlock = NativeMethods.SCE_B_DOCBLOCK;

            /// <summary>
            /// Documentation keyword style index.
            /// </summary>
            public const int DocKeyword = NativeMethods.SCE_B_DOCKEYWORD;
        }

        #endregion FreeBasic

        #region Html

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Html" /> lexer.
        /// </summary>
        public static class Html
        {
            /// <summary>
            /// Content style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_H_DEFAULT;

            /// <summary>
            /// Tag style index.
            /// </summary>
            public const int Tag = NativeMethods.SCE_H_TAG;

            /// <summary>
            /// Unknown tag style index.
            /// </summary>
            public const int TagUnknown = NativeMethods.SCE_H_TAGUNKNOWN;

            /// <summary>
            /// Attribute style index.
            /// </summary>
            public const int Attribute = NativeMethods.SCE_H_ATTRIBUTE;

            /// <summary>
            /// Unknown attribute style index.
            /// </summary>
            public const int AttributeUnknown = NativeMethods.SCE_H_ATTRIBUTEUNKNOWN;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_H_NUMBER;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int DoubleString = NativeMethods.SCE_H_DOUBLESTRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int SingleString = NativeMethods.SCE_H_SINGLESTRING;

            /// <summary>
            /// Other tag content (not elements or attributes) style index.
            /// </summary>
            public const int Other = NativeMethods.SCE_H_OTHER;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_H_COMMENT;

            /// <summary>
            /// Entity ($nnn;) name style index.
            /// </summary>
            public const int Entity = NativeMethods.SCE_H_ENTITY;

            /// <summary>
            /// End-tag style index.
            /// </summary>
            public const int TagEnd = NativeMethods.SCE_H_TAGEND;

            /// <summary>
            /// Start of XML declaration (&lt;?xml&gt;) style index.
            /// </summary>
            public const int XmlStart = NativeMethods.SCE_H_XMLSTART;

            /// <summary>
            /// End of XML declaration (?&gt;) style index.
            /// </summary>
            public const int XmlEnd = NativeMethods.SCE_H_XMLEND;

            /// <summary>
            /// Script tag (&lt;script&gt;) style index.
            /// </summary>
            public const int Script = NativeMethods.SCE_H_SCRIPT;

            /// <summary>
            /// ASP-like script engine block (&lt;%) style index.
            /// </summary>
            public const int Asp = NativeMethods.SCE_H_ASP;

            /// <summary>
            /// ASP-like language declaration (&lt;%@) style index.
            /// </summary>
            public const int AspAt = NativeMethods.SCE_H_ASPAT;

            /// <summary>
            /// CDATA section style index.
            /// </summary>
            public const int CData = NativeMethods.SCE_H_CDATA;

            /// <summary>
            /// Question mark style index.
            /// </summary>
            public const int Question = NativeMethods.SCE_H_QUESTION;

            /// <summary>
            /// Value style index.
            /// </summary>
            public const int Value = NativeMethods.SCE_H_VALUE;

            /// <summary>
            /// Script engine comment (&lt;%--) style index.
            /// </summary>
            public const int XcComment = NativeMethods.SCE_H_XCCOMMENT;
        }

        #endregion Html

        #region JavaScript

        /// <summary>
        /// Embedded JavaScript style constants for use with the <see cref="Lexer.Html" /> lexer.
        /// </summary>
        public static class JavaScript
        {
            /// <summary>
            /// Start style index (allows EOL filled background to not start on same line as SCRIPT tag).
            /// </summary>
            public const int Start = NativeMethods.SCE_HJ_START;

            /// <summary>
            /// Default style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_HJ_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_HJ_COMMENT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_HJ_COMMENTLINE;

            /// <summary>
            /// Doc comment style index.
            /// </summary>
            public const int CommentDoc = NativeMethods.SCE_HJ_COMMENTDOC;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_HJ_NUMBER;

            /// <summary>
            /// Word style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_HJ_WORD;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_HJ_KEYWORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int DoubleString = NativeMethods.SCE_HJ_DOUBLESTRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int SingleString = NativeMethods.SCE_HJ_SINGLESTRING;

            /// <summary>
            /// Symbols style index.
            /// </summary>
            public const int Symbols = NativeMethods.SCE_HJ_SYMBOLS;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_HJ_STRINGEOL;

            /// <summary>
            /// Regular expression style index.
            /// </summary>
            public const int Regex = NativeMethods.SCE_HJ_REGEX;
        }

        #endregion JavaScript

        #region Json

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Json" /> lexer.
        /// </summary>
        public static class Json
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_JSON_DEFAULT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_JSON_NUMBER;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_JSON_STRING;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_JSON_STRINGEOL;

            /// <summary>
            /// Property name style index.
            /// </summary>
            public const int PropertyName = NativeMethods.SCE_JSON_PROPERTYNAME;

            /// <summary>
            /// Escape sequence style index.
            /// </summary>
            public const int EscapeSequence = NativeMethods.SCE_JSON_ESCAPESEQUENCE;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int LineComment = NativeMethods.SCE_JSON_LINECOMMENT;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int BlockComment = NativeMethods.SCE_JSON_BLOCKCOMMENT;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_JSON_OPERATOR;

            /// <summary>
            /// URI style index.
            /// </summary>
            public const int Uri = NativeMethods.SCE_JSON_URI;

            /// <summary>
            /// Compact Internationalized Resource Identifier (IRI) style index.
            /// </summary>
            public const int CompactIRI = NativeMethods.SCE_JSON_COMPACTIRI;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_JSON_KEYWORD;

            /// <summary>
            /// Linked data (LD) keyword style index.
            /// </summary>
            public const int LdKeyword = NativeMethods.SCE_JSON_LDKEYWORD;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_JSON_ERROR;
        }

        #endregion Json

        #region Lisp

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Lisp" /> lexer.
        /// </summary>
        public static class Lisp
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_LISP_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_LISP_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_LISP_NUMBER;

            /// <summary>
            /// Functions and special operators (list 0) style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_LISP_KEYWORD;

            /// <summary>
            /// Keywords (list 1) style index.
            /// </summary>
            public const int KeywordKw = NativeMethods.SCE_LISP_KEYWORD_KW;

            /// <summary>
            /// Symbol style index.
            /// </summary>
            public const int Symbol = NativeMethods.SCE_LISP_SYMBOL;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_LISP_STRING;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_LISP_STRINGEOL;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_LISP_IDENTIFIER;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_LISP_OPERATOR;

            /// <summary>
            /// Special character style index.
            /// </summary>
            public const int Special = NativeMethods.SCE_LISP_SPECIAL;

            /// <summary>
            /// Multi-line comment style index.
            /// </summary>
            public const int MultiComment = NativeMethods.SCE_LISP_MULTI_COMMENT;
        }

        #endregion Lisp

        #region Lua

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Lua" /> lexer.
        /// </summary>
        public static class Lua
        {
            /// <summary>
            /// Default style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_LUA_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_LUA_COMMENT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_LUA_COMMENTLINE;

            /// <summary>
            /// Documentation comment style index.
            /// </summary>
            public const int CommentDoc = NativeMethods.SCE_LUA_COMMENTDOC;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_LUA_NUMBER;

            /// <summary>
            /// Keyword list 1 (index 0) style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_LUA_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_LUA_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_LUA_CHARACTER;

            /// <summary>
            /// Literal string style index.
            /// </summary>
            public const int LiteralString = NativeMethods.SCE_LUA_LITERALSTRING;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_LUA_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_LUA_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_LUA_IDENTIFIER;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_LUA_STRINGEOL;

            /// <summary>
            /// Keywords list 2 (index 1) style index.
            /// </summary>
            public const int Word2 = NativeMethods.SCE_LUA_WORD2;

            /// <summary>
            /// Keywords list 3 (index 2) style index.
            /// </summary>
            public const int Word3 = NativeMethods.SCE_LUA_WORD3;

            /// <summary>
            /// Keywords list 4 (index 3) style index.
            /// </summary>
            public const int Word4 = NativeMethods.SCE_LUA_WORD4;

            /// <summary>
            /// Keywords list 5 (index 4) style index.
            /// </summary>
            public const int Word5 = NativeMethods.SCE_LUA_WORD5;

            /// <summary>
            /// Keywords list 6 (index 5) style index.
            /// </summary>
            public const int Word6 = NativeMethods.SCE_LUA_WORD6;

            /// <summary>
            /// Keywords list 7 (index 6) style index.
            /// </summary>
            public const int Word7 = NativeMethods.SCE_LUA_WORD7;

            /// <summary>
            /// Keywords list 8 (index 7) style index.
            /// </summary>
            public const int Word8 = NativeMethods.SCE_LUA_WORD8;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_LUA_LABEL;
        }

        #endregion Lua

        #region Matlab

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Matlab" /> lexer.
        /// </summary>
        public static class Matlab
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_MATLAB_DEFAULT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_MATLAB_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_MATLAB_NUMBER;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_MATLAB_STRING;

            /// <summary>
            /// Command style index.
            /// </summary>
            public const int Command = NativeMethods.SCE_MATLAB_COMMAND;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_MATLAB_KEYWORD;

            /// <summary>
            /// Double quote string style index.
            /// </summary>
            public const int DoubleQuoteString = NativeMethods.SCE_MATLAB_DOUBLEQUOTESTRING;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_MATLAB_IDENTIFIER;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_MATLAB_OPERATOR;
        }

        #endregion Matlab

        #region Pascal

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Pascal" /> lexer.
        /// </summary>
        public static class Pascal
        {
            /// <summary>
            /// Default style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_PAS_DEFAULT;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_PAS_IDENTIFIER;

            /// <summary>
            /// Comment style '{' index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_PAS_COMMENT;

            /// <summary>
            /// Comment style 2 "(*" index.
            /// </summary>
            public const int Comment2 = NativeMethods.SCE_PAS_COMMENT2;

            /// <summary>
            /// Comment line style "//" index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_PAS_COMMENTLINE;

            /// <summary>
            /// Preprocessor style "{$" index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_PAS_PREPROCESSOR;

            /// <summary>
            /// Preprocessor style 2 "(*$" index.
            /// </summary>
            public const int Preprocessor2 = NativeMethods.SCE_PAS_PREPROCESSOR2;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_PAS_NUMBER;

            /// <summary>
            /// Hexadecimal number style index.
            /// </summary>
            public const int HexNumber = NativeMethods.SCE_PAS_HEXNUMBER;

            /// <summary>
            /// Word (keyword set 0) style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_PAS_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_PAS_STRING;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_PAS_STRINGEOL;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_PAS_CHARACTER;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_PAS_OPERATOR;

            /// <summary>
            /// Assembly style index.
            /// </summary>
            public const int Asm = NativeMethods.SCE_PAS_ASM;
        }

        #endregion Pascal

        #region Perl

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Perl" /> lexer.
        /// </summary>
        public static class Perl
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_PL_DEFAULT;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_PL_ERROR;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_PL_COMMENTLINE;

            /// <summary>
            /// POD style index.
            /// </summary>
            public const int Pod = NativeMethods.SCE_PL_POD;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_PL_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_PL_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_PL_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_PL_CHARACTER;

            /// <summary>
            /// Punctuation style index.
            /// </summary>
            public const int Punctuation = NativeMethods.SCE_PL_PUNCTUATION;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_PL_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_PL_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_PL_IDENTIFIER;

            /// <summary>
            /// Scalar style index.
            /// </summary>
            public const int Scalar = NativeMethods.SCE_PL_SCALAR;

            /// <summary>
            /// Array style index.
            /// </summary>
            public const int Array = NativeMethods.SCE_PL_ARRAY;

            /// <summary>
            /// Hash style index.
            /// </summary>
            public const int Hash = NativeMethods.SCE_PL_HASH;

            /// <summary>
            /// Symbol table style index.
            /// </summary>
            public const int SymbolTable = NativeMethods.SCE_PL_SYMBOLTABLE;

            /// <summary>
            /// Variable indexer index.
            /// </summary>
            public const int VariableIndexer = NativeMethods.SCE_PL_VARIABLE_INDEXER;

            /// <summary>
            /// Regular expression style index.
            /// </summary>
            public const int Regex = NativeMethods.SCE_PL_REGEX;

            /// <summary>
            /// RegSubst style index.
            /// </summary>
            public const int RegSubst = NativeMethods.SCE_PL_REGSUBST;

            // public const int LongQuote = NativeMethods.SCE_PL_LONGQUOTE;

            /// <summary>
            /// Backtick (grave accent, backquote) style index.
            /// </summary>
            public const int BackTicks = NativeMethods.SCE_PL_BACKTICKS;

            /// <summary>
            /// Data section style index.
            /// </summary>
            public const int DataSection = NativeMethods.SCE_PL_DATASECTION;

            /// <summary>
            /// HereDoc delimiter style index.
            /// </summary>
            public const int HereDelim = NativeMethods.SCE_PL_HERE_DELIM;

            /// <summary>
            /// HereDoc single-quote style index.
            /// </summary>
            public const int HereQ = NativeMethods.SCE_PL_HERE_Q;

            /// <summary>
            /// HereDoc double-quote style index.
            /// </summary>
            public const int HereQq = NativeMethods.SCE_PL_HERE_QQ;

            /// <summary>
            /// HereDoc backtick style index.
            /// </summary>
            public const int HereQx = NativeMethods.SCE_PL_HERE_QX;

            /// <summary>
            /// Q quote style index.
            /// </summary>
            public const int StringQ = NativeMethods.SCE_PL_STRING_Q;

            /// <summary>
            /// QQ quote style index.
            /// </summary>
            public const int StringQq = NativeMethods.SCE_PL_STRING_QQ;

            /// <summary>
            /// QZ quote style index.
            /// </summary>
            public const int StringQx = NativeMethods.SCE_PL_STRING_QX;

            /// <summary>
            /// QR quote style index.
            /// </summary>
            public const int StringQr = NativeMethods.SCE_PL_STRING_QR;

            /// <summary>
            /// QW quote style index.
            /// </summary>
            public const int StringQw = NativeMethods.SCE_PL_STRING_QW;

            /// <summary>
            /// POD verbatim style index.
            /// </summary>
            public const int PodVerb = NativeMethods.SCE_PL_POD_VERB;

            /// <summary>
            /// Subroutine prototype style index.
            /// </summary>
            public const int SubPrototype = NativeMethods.SCE_PL_SUB_PROTOTYPE;

            /// <summary>
            /// Format identifier style index.
            /// </summary>
            public const int FormatIdent = NativeMethods.SCE_PL_FORMAT_IDENT;

            /// <summary>
            /// Format style index.
            /// </summary>
            public const int Format = NativeMethods.SCE_PL_FORMAT;

            /// <summary>
            /// String variable style index.
            /// </summary>
            public const int StringVar = NativeMethods.SCE_PL_STRING_VAR;

            /// <summary>
            /// XLAT style index.
            /// </summary>
            public const int XLat = NativeMethods.SCE_PL_XLAT;

            /// <summary>
            /// Regular expression variable style index.
            /// </summary>
            public const int RegexVar = NativeMethods.SCE_PL_REGEX_VAR;

            /// <summary>
            /// RegSubst variable style index.
            /// </summary>
            public const int RegSubstVar = NativeMethods.SCE_PL_REGSUBST_VAR;

            /// <summary>
            /// Backticks variable style index.
            /// </summary>
            public const int BackticksVar = NativeMethods.SCE_PL_BACKTICKS_VAR;

            /// <summary>
            /// HereDoc QQ quote variable style index.
            /// </summary>
            public const int HereQqVar = NativeMethods.SCE_PL_HERE_QQ_VAR;

            /// <summary>
            /// HereDoc QX quote variable style index.
            /// </summary>
            public const int HereQxVar = NativeMethods.SCE_PL_HERE_QX_VAR;

            /// <summary>
            /// QQ quote variable style index.
            /// </summary>
            public const int StringQqVar = NativeMethods.SCE_PL_STRING_QQ_VAR;

            /// <summary>
            /// QX quote variable style index.
            /// </summary>
            public const int StringQxVar = NativeMethods.SCE_PL_STRING_QX_VAR;

            /// <summary>
            /// QR quote variable style index.
            /// </summary>
            public const int StringQrVar = NativeMethods.SCE_PL_STRING_QR_VAR;
        }

        #endregion Perl

        #region PhpScript

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.PhpScript" /> lexer.
        /// </summary>
        public static class PhpScript
        {
            /// <summary>
            /// Complex Variable style index.
            /// </summary>
            public const int ComplexVariable = NativeMethods.SCE_HPHP_COMPLEX_VARIABLE;

            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_HPHP_DEFAULT;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int HString = NativeMethods.SCE_HPHP_HSTRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int SimpleString = NativeMethods.SCE_HPHP_SIMPLESTRING;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_HPHP_WORD;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_HPHP_NUMBER;

            /// <summary>
            /// Variable style index.
            /// </summary>
            public const int Variable = NativeMethods.SCE_HPHP_VARIABLE;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_HPHP_COMMENT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_HPHP_COMMENTLINE;

            /// <summary>
            /// Double-quoted string variable style index.
            /// </summary>
            public const int HStringVariable = NativeMethods.SCE_HPHP_HSTRING_VARIABLE;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_HPHP_OPERATOR;
        }

        #endregion PhpScript

        #region PowerShell

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.PowerShell" /> lexer.
        /// </summary>
        public static class PowerShell
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_POWERSHELL_DEFAULT;

            /// <summary>
            /// Line comment style index
            /// </summary>
            public const int Comment = NativeMethods.SCE_POWERSHELL_COMMENT;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_POWERSHELL_STRING;

            /// <summary>
            /// Character style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_POWERSHELL_CHARACTER;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_POWERSHELL_NUMBER;

            /// <summary>
            /// Variable style index.
            /// </summary>
            public const int Variable = NativeMethods.SCE_POWERSHELL_VARIABLE;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_POWERSHELL_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_POWERSHELL_IDENTIFIER;

            /// <summary>
            /// Keyword (set 0) style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_POWERSHELL_KEYWORD;

            /// <summary>
            /// Cmdlet (set 1) style index.
            /// </summary>
            public const int Cmdlet = NativeMethods.SCE_POWERSHELL_CMDLET;

            /// <summary>
            /// Alias (set 2) style index.
            /// </summary>
            public const int Alias = NativeMethods.SCE_POWERSHELL_ALIAS;

            /// <summary>
            /// Function (set 3) style index.
            /// </summary>
            public const int Function = NativeMethods.SCE_POWERSHELL_FUNCTION;

            /// <summary>
            /// User word (set 4) style index.
            /// </summary>
            public const int User1 = NativeMethods.SCE_POWERSHELL_USER1;

            /// <summary>
            /// Multi-line comment style index.
            /// </summary>
            public const int CommentStream = NativeMethods.SCE_POWERSHELL_COMMENTSTREAM;

            /// <summary>
            /// Here string style index.
            /// </summary>
            public const int HereString = NativeMethods.SCE_POWERSHELL_HERE_STRING;

            /// <summary>
            /// Here character style index.
            /// </summary>
            public const int HereCharacter = NativeMethods.SCE_POWERSHELL_HERE_CHARACTER;

            /// <summary>
            /// Comment based help keyword style index.
            /// </summary>
            public const int CommentDocKeyword = NativeMethods.SCE_POWERSHELL_COMMENTDOCKEYWORD;
        }

        #endregion PowerShell

        #region Properties

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Properties" /> lexer.
        /// </summary>
        public static class Properties
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_PROPS_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_PROPS_COMMENT;

            /// <summary>
            /// Section style index.
            /// </summary>
            public const int Section = NativeMethods.SCE_PROPS_SECTION;

            /// <summary>
            /// Assignment operator index.
            /// </summary>
            public const int Assignment = NativeMethods.SCE_PROPS_ASSIGNMENT;

            /// <summary>
            /// Default (registry-only) value index.
            /// </summary>
            public const int DefVal = NativeMethods.SCE_PROPS_DEFVAL;

            /// <summary>
            /// Key style index.
            /// </summary>
            public const int Key = NativeMethods.SCE_PROPS_KEY;
        }

        #endregion Properties

        #region PureBasic

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.PureBasic" /> lexer.
        /// </summary>
        public static class PureBasic
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_B_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_B_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_B_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_B_KEYWORD;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_B_STRING;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_B_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_B_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_B_IDENTIFIER;

            /// <summary>
            /// Date style index.
            /// </summary>
            public const int Date = NativeMethods.SCE_B_DATE;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_B_STRINGEOL;

            /// <summary>
            /// Keyword list 2 (index 1) style index.
            /// </summary>
            public const int Keyword2 = NativeMethods.SCE_B_KEYWORD2;

            /// <summary>
            /// Keyword list 3 (index 2) style index.
            /// </summary>
            public const int Keyword3 = NativeMethods.SCE_B_KEYWORD3;

            /// <summary>
            /// Keyword list 4 (index 3) style index.
            /// </summary>
            public const int Keyword4 = NativeMethods.SCE_B_KEYWORD4;

            /// <summary>
            /// Constant style index.
            /// </summary>
            public const int Constant = NativeMethods.SCE_B_CONSTANT;

            /// <summary>
            /// Inline assembler style index.
            /// </summary>
            public const int Asm = NativeMethods.SCE_B_ASM;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_B_LABEL;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_B_ERROR;

            /// <summary>
            /// Hexadecimal number style index.
            /// </summary>
            public const int HexNumber = NativeMethods.SCE_B_HEXNUMBER;

            /// <summary>
            /// Binary number style index.
            /// </summary>
            public const int BinNumber = NativeMethods.SCE_B_BINNUMBER;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_B_COMMENTBLOCK;

            /// <summary>
            /// Documentation line style index.
            /// </summary>
            public const int DocLine = NativeMethods.SCE_B_DOCLINE;

            /// <summary>
            /// Documentation block style index.
            /// </summary>
            public const int DocBlock = NativeMethods.SCE_B_DOCBLOCK;

            /// <summary>
            /// Documentation keyword style index.
            /// </summary>
            public const int DocKeyword = NativeMethods.SCE_B_DOCKEYWORD;
        }

        #endregion PureBasic

        #region Python

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Python" /> lexer.
        /// </summary>
        public static class Python
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_P_DEFAULT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_P_COMMENTLINE;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_P_NUMBER;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_P_STRING;

            /// <summary>
            /// Single-quote style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_P_CHARACTER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_P_WORD;

            /// <summary>
            /// Triple single-quote style index.
            /// </summary>
            public const int Triple = NativeMethods.SCE_P_TRIPLE;

            /// <summary>
            /// Triple double-quote style index.
            /// </summary>
            public const int TripleDouble = NativeMethods.SCE_P_TRIPLEDOUBLE;

            /// <summary>
            /// Class name style index.
            /// </summary>
            public const int ClassName = NativeMethods.SCE_P_CLASSNAME;

            /// <summary>
            /// Function or method name style index.
            /// </summary>
            public const int DefName = NativeMethods.SCE_P_DEFNAME;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_P_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_P_IDENTIFIER;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_P_COMMENTBLOCK;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_P_STRINGEOL;

            /// <summary>
            /// Keyword style 2 index.
            /// </summary>
            public const int Word2 = NativeMethods.SCE_P_WORD2;

            /// <summary>
            /// Decorator style index.
            /// </summary>
            public const int Decorator = NativeMethods.SCE_P_DECORATOR;
        }

        #endregion Python

        #region Ruby

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Ruby" /> lexer.
        /// </summary>
        public static class Ruby
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_RB_DEFAULT;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_RB_ERROR;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_RB_COMMENTLINE;

            /// <summary>
            /// POD style index.
            /// </summary>
            public const int Pod = NativeMethods.SCE_RB_POD;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_RB_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_RB_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_RB_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_RB_CHARACTER;

            /// <summary>
            /// Class name style index.
            /// </summary>
            public const int ClassName = NativeMethods.SCE_RB_CLASSNAME;

            /// <summary>
            /// Definition style index.
            /// </summary>
            public const int DefName = NativeMethods.SCE_RB_DEFNAME;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_RB_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_RB_IDENTIFIER;

            /// <summary>
            /// Regular expression style index.
            /// </summary>
            public const int Regex = NativeMethods.SCE_RB_REGEX;

            /// <summary>
            /// Global style index.
            /// </summary>
            public const int Global = NativeMethods.SCE_RB_GLOBAL;

            /// <summary>
            /// Symbol style index.
            /// </summary>
            public const int Symbol = NativeMethods.SCE_RB_SYMBOL;

            /// <summary>
            /// Module name style index.
            /// </summary>
            public const int ModuleName = NativeMethods.SCE_RB_MODULE_NAME;

            /// <summary>
            /// Instance variable style index.
            /// </summary>
            public const int InstanceVar = NativeMethods.SCE_RB_INSTANCE_VAR;

            /// <summary>
            /// Class variable style index.
            /// </summary>
            public const int ClassVar = NativeMethods.SCE_RB_CLASS_VAR;

            /// <summary>
            /// Backticks style index.
            /// </summary>
            public const int BackTicks = NativeMethods.SCE_RB_BACKTICKS;

            /// <summary>
            /// Data section style index.
            /// </summary>
            public const int DataSection = NativeMethods.SCE_RB_DATASECTION;

            /// <summary>
            /// HereDoc delimiter style index.
            /// </summary>
            public const int HereDelim = NativeMethods.SCE_RB_HERE_DELIM;

            /// <summary>
            /// HereDoc Q quote style index.
            /// </summary>
            public const int HereQ = NativeMethods.SCE_RB_HERE_Q;

            /// <summary>
            /// HereDoc QQ quote style index.
            /// </summary>
            public const int HereQq = NativeMethods.SCE_RB_HERE_QQ;

            /// <summary>
            /// HereDoc QX quote style index.
            /// </summary>
            public const int HereQx = NativeMethods.SCE_RB_HERE_QX;

            /// <summary>
            /// Q quote string style index.
            /// </summary>
            public const int StringQ = NativeMethods.SCE_RB_STRING_Q;

            /// <summary>
            /// QQ quote string style index.
            /// </summary>
            public const int StringQq = NativeMethods.SCE_RB_STRING_QQ;

            /// <summary>
            /// QX quote string style index.
            /// </summary>
            public const int StringQx = NativeMethods.SCE_RB_STRING_QX;

            /// <summary>
            /// QR quote string style index.
            /// </summary>
            public const int StringQr = NativeMethods.SCE_RB_STRING_QR;

            /// <summary>
            /// QW quote style index.
            /// </summary>
            public const int StringQw = NativeMethods.SCE_RB_STRING_QW;

            /// <summary>
            /// Demoted keyword style index.
            /// </summary>
            public const int WordDemoted = NativeMethods.SCE_RB_WORD_DEMOTED;

            /// <summary>
            /// Standard-in style index.
            /// </summary>
            public const int StdIn = NativeMethods.SCE_RB_STDIN;

            /// <summary>
            /// Standard-out style index.
            /// </summary>
            public const int StdOut = NativeMethods.SCE_RB_STDOUT;

            /// <summary>
            /// Standard-error style index.
            /// </summary>
            public const int StdErr = NativeMethods.SCE_RB_STDERR;

            // public const int UpperBound = NativeMethods.SCE_RB_UPPER_BOUND;
        }

        #endregion Ruby

        #region Smalltalk

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Smalltalk" /> lexer.
        /// </summary>
        public static class Smalltalk
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_ST_DEFAULT;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_ST_STRING;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_ST_NUMBER;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_ST_COMMENT;

            /// <summary>
            /// Symbol style index.
            /// </summary>
            public const int Symbol = NativeMethods.SCE_ST_SYMBOL;

            /// <summary>
            /// Binary style index.
            /// </summary>
            public const int Binary = NativeMethods.SCE_ST_BINARY;

            /// <summary>
            /// Bool style index.
            /// </summary>
            public const int Bool = NativeMethods.SCE_ST_BOOL;

            /// <summary>
            /// Self style index.
            /// </summary>
            public const int Self = NativeMethods.SCE_ST_SELF;

            /// <summary>
            /// Super style index.
            /// </summary>
            public const int Super = NativeMethods.SCE_ST_SUPER;

            /// <summary>
            /// NIL style index.
            /// </summary>
            public const int Nil = NativeMethods.SCE_ST_NIL;

            /// <summary>
            /// Global style index.
            /// </summary>
            public const int Global = NativeMethods.SCE_ST_GLOBAL;

            /// <summary>
            /// Return style index.
            /// </summary>
            public const int Return = NativeMethods.SCE_ST_RETURN;

            /// <summary>
            /// Special style index.
            /// </summary>
            public const int Special = NativeMethods.SCE_ST_SPECIAL;

            /// <summary>
            /// KWS End style index.
            /// </summary>
            public const int KwsEnd = NativeMethods.SCE_ST_KWSEND;

            /// <summary>
            /// Assign style index.
            /// </summary>
            public const int Assign = NativeMethods.SCE_ST_ASSIGN;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_ST_CHARACTER;

            /// <summary>
            /// Special selector style index.
            /// </summary>
            public const int SpecSel = NativeMethods.SCE_ST_SPEC_SEL;
        }

        #endregion Smalltalk

        #region Sql

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Sql" /> lexer.
        /// </summary>
        public static class Sql
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_SQL_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_SQL_COMMENT;

            /// <summary>
            /// Line comment style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_SQL_COMMENTLINE;

            /// <summary>
            /// Documentation comment style index.
            /// </summary>
            public const int CommentDoc = NativeMethods.SCE_SQL_COMMENTDOC;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_SQL_NUMBER;

            /// <summary>
            /// Keyword list 1 (index 0) style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_SQL_WORD;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_SQL_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int Character = NativeMethods.SCE_SQL_CHARACTER;

            /// <summary>
            /// Keyword from the SQL*Plus list (index 3) style index.
            /// </summary>
            public const int SqlPlus = NativeMethods.SCE_SQL_SQLPLUS;

            /// <summary>
            /// SQL*Plus prompt style index.
            /// </summary>
            public const int SqlPlusPrompt = NativeMethods.SCE_SQL_SQLPLUS_PROMPT;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_SQL_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_SQL_IDENTIFIER;

            /// <summary>
            /// SQL*Plus comment style index.
            /// </summary>
            public const int SqlPlusComment = NativeMethods.SCE_SQL_SQLPLUS_COMMENT;

            /// <summary>
            /// Documentation line comment style index.
            /// </summary>
            public const int CommentLineDoc = NativeMethods.SCE_SQL_COMMENTLINEDOC;

            /// <summary>
            /// Keyword list 2 (index 1) style index.
            /// </summary>
            public const int Word2 = NativeMethods.SCE_SQL_WORD2;

            /// <summary>
            /// Documentation (Doxygen) keyword style index.
            /// </summary>
            public const int CommentDocKeyword = NativeMethods.SCE_SQL_COMMENTDOCKEYWORD;

            /// <summary>
            /// Documentation (Doxygen) keyword error style index.
            /// </summary>
            public const int CommentDocKeywordError = NativeMethods.SCE_SQL_COMMENTDOCKEYWORDERROR;

            /// <summary>
            /// Keyword user-list 1 (index 4) style index.
            /// </summary>
            public const int User1 = NativeMethods.SCE_SQL_USER1;

            /// <summary>
            /// Keyword user-list 2 (index 5) style index.
            /// </summary>
            public const int User2 = NativeMethods.SCE_SQL_USER2;

            /// <summary>
            /// Keyword user-list 3 (index 6) style index.
            /// </summary>
            public const int User3 = NativeMethods.SCE_SQL_USER3;

            /// <summary>
            /// Keyword user-list 4 (index 7) style index.
            /// </summary>
            public const int User4 = NativeMethods.SCE_SQL_USER4;

            /// <summary>
            /// Quoted identifier style index.
            /// </summary>
            public const int QuotedIdentifier = NativeMethods.SCE_SQL_QUOTEDIDENTIFIER;

            /// <summary>
            /// Q operator style index.
            /// </summary>
            public const int QOperator = NativeMethods.SCE_SQL_QOPERATOR;
        }

        #endregion Sql

        #region Markdown

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Markdown" /> lexer.
        /// </summary>
        public static class Markdown
        {
            /// <summary>
            /// Default text style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_MARKDOWN_DEFAULT;

            /// <summary>
            /// Line begin style index.
            /// </summary>
            public const int LineBegin = NativeMethods.SCE_MARKDOWN_LINE_BEGIN;

            /// <summary>
            /// Strong type 1 style index.
            /// </summary>
            public const int Strong1 = NativeMethods.SCE_MARKDOWN_STRONG1;

            /// <summary>
            /// Strong type 2 style index.
            /// </summary>
            public const int Strong2 = NativeMethods.SCE_MARKDOWN_STRONG2;

            /// <summary>
            /// Empasis type 1 style index.
            /// </summary>
            public const int Em1 = NativeMethods.SCE_MARKDOWN_EM1;

            /// <summary>
            /// Empasis type 2 style index.
            /// </summary>
            public const int Em2 = NativeMethods.SCE_MARKDOWN_EM2;

            /// <summary>
            /// Header type 1 style index.
            /// </summary>
            public const int Header1 = NativeMethods.SCE_MARKDOWN_HEADER1;

            /// <summary>
            /// Header type 2 style index.
            /// </summary>
            public const int Header2 = NativeMethods.SCE_MARKDOWN_HEADER2;

            /// <summary>
            /// Header type 3 style index.
            /// </summary>
            public const int Header3 = NativeMethods.SCE_MARKDOWN_HEADER3;

            /// <summary>
            /// Header type 4 style index.
            /// </summary>
            public const int Header4 = NativeMethods.SCE_MARKDOWN_HEADER4;

            /// <summary>
            /// Header type 5 style index.
            /// </summary>
            public const int Header5 = NativeMethods.SCE_MARKDOWN_HEADER5;

            /// <summary>
            /// Header type 6 style index.
            /// </summary>
            public const int Header6 = NativeMethods.SCE_MARKDOWN_HEADER6;

            /// <summary>
            /// Pre char style index.
            /// </summary>
            public const int PreChar = NativeMethods.SCE_MARKDOWN_PRECHAR;

            /// <summary>
            /// Unordered list style index.
            /// </summary>
            public const int UListItem = NativeMethods.SCE_MARKDOWN_ULIST_ITEM;

            /// <summary>
            /// Ordered list style index.
            /// </summary>
            public const int OListItem = NativeMethods.SCE_MARKDOWN_OLIST_ITEM;

            /// <summary>
            /// Blockquote style index.
            /// </summary>
            public const int BlockQuote = NativeMethods.SCE_MARKDOWN_BLOCKQUOTE;

            /// <summary>
            /// Strikeout style index.
            /// </summary>
            public const int Strikeout = NativeMethods.SCE_MARKDOWN_STRIKEOUT;

            /// <summary>
            /// Horizontal rule style index.
            /// </summary>
            public const int HRule = NativeMethods.SCE_MARKDOWN_HRULE;

            /// <summary>
            /// Link style index.
            /// </summary>
            public const int Link = NativeMethods.SCE_MARKDOWN_LINK;

            /// <summary>
            /// Code type 1 style index.
            /// </summary>
            public const int Code = NativeMethods.SCE_MARKDOWN_CODE;

            /// <summary>
            /// Code type 2 style index.
            /// </summary>
            public const int Code2 = NativeMethods.SCE_MARKDOWN_CODE2;

            /// <summary>
            /// Code block style index.
            /// </summary>
            public const int CodeBk = NativeMethods.SCE_MARKDOWN_CODEBK;
        }

        #endregion Markdown

        #region R

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.R" /> lexer.
        /// </summary>
        public static class R
        {
            /// <summary>
            /// Default style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_R_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_R_COMMENT;

            /// <summary>
            /// Keyword (set 0) style index.
            /// </summary>
            public const int KWord = NativeMethods.SCE_R_KWORD;

            /// <summary>
            /// Base keyword (set 1) style index.
            /// </summary>
            public const int BaseKWord = NativeMethods.SCE_R_BASEKWORD;

            /// <summary>
            /// Other keyword (set 2) style index.
            /// </summary>
            public const int OtherKWord = NativeMethods.SCE_R_OTHERKWORD;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_R_NUMBER;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int String = NativeMethods.SCE_R_STRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int String2 = NativeMethods.SCE_R_STRING2;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_R_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_R_IDENTIFIER;

            /// <summary>
            /// Infix style index.
            /// </summary>
            public const int Infix = NativeMethods.SCE_R_INFIX;

            /// <summary>
            /// Unclosed infix EOL style index.
            /// </summary>
            public const int InfixEol = NativeMethods.SCE_R_INFIXEOL;
        }

        #endregion R

        #region Vb

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Vb" /> lexer.
        /// </summary>
        public static class Vb
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_B_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_B_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_B_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_B_KEYWORD;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_B_STRING;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_B_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_B_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_B_IDENTIFIER;

            /// <summary>
            /// Date style index.
            /// </summary>
            public const int Date = NativeMethods.SCE_B_DATE;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_B_STRINGEOL;

            /// <summary>
            /// Keyword list 2 (index 1) style index.
            /// </summary>
            public const int Keyword2 = NativeMethods.SCE_B_KEYWORD2;

            /// <summary>
            /// Keyword list 3 (index 2) style index.
            /// </summary>
            public const int Keyword3 = NativeMethods.SCE_B_KEYWORD3;

            /// <summary>
            /// Keyword list 4 (index 3) style index.
            /// </summary>
            public const int Keyword4 = NativeMethods.SCE_B_KEYWORD4;

            /// <summary>
            /// Constant style index.
            /// </summary>
            public const int Constant = NativeMethods.SCE_B_CONSTANT;

            /// <summary>
            /// Inline assembler style index.
            /// </summary>
            public const int Asm = NativeMethods.SCE_B_ASM;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_B_LABEL;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_B_ERROR;

            /// <summary>
            /// Hexadecimal number style index.
            /// </summary>
            public const int HexNumber = NativeMethods.SCE_B_HEXNUMBER;

            /// <summary>
            /// Binary number style index.
            /// </summary>
            public const int BinNumber = NativeMethods.SCE_B_BINNUMBER;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_B_COMMENTBLOCK;

            /// <summary>
            /// Documentation line style index.
            /// </summary>
            public const int DocLine = NativeMethods.SCE_B_DOCLINE;

            /// <summary>
            /// Documentation block style index.
            /// </summary>
            public const int DocBlock = NativeMethods.SCE_B_DOCBLOCK;

            /// <summary>
            /// Documentation keyword style index.
            /// </summary>
            public const int DocKeyword = NativeMethods.SCE_B_DOCKEYWORD;
        }

        #endregion Vb

        #region VbScript

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.VbScript" /> lexer.
        /// </summary>
        public static class VbScript
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_B_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_B_COMMENT;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_B_NUMBER;

            /// <summary>
            /// Keyword style index.
            /// </summary>
            public const int Keyword = NativeMethods.SCE_B_KEYWORD;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_B_STRING;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_B_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_B_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_B_IDENTIFIER;

            /// <summary>
            /// Date style index.
            /// </summary>
            public const int Date = NativeMethods.SCE_B_DATE;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_B_STRINGEOL;

            /// <summary>
            /// Keyword list 2 (index 1) style index.
            /// </summary>
            public const int Keyword2 = NativeMethods.SCE_B_KEYWORD2;

            /// <summary>
            /// Keyword list 3 (index 2) style index.
            /// </summary>
            public const int Keyword3 = NativeMethods.SCE_B_KEYWORD3;

            /// <summary>
            /// Keyword list 4 (index 3) style index.
            /// </summary>
            public const int Keyword4 = NativeMethods.SCE_B_KEYWORD4;

            /// <summary>
            /// Constant style index.
            /// </summary>
            public const int Constant = NativeMethods.SCE_B_CONSTANT;

            /// <summary>
            /// Inline assembler style index.
            /// </summary>
            public const int Asm = NativeMethods.SCE_B_ASM;

            /// <summary>
            /// Label style index.
            /// </summary>
            public const int Label = NativeMethods.SCE_B_LABEL;

            /// <summary>
            /// Error style index.
            /// </summary>
            public const int Error = NativeMethods.SCE_B_ERROR;

            /// <summary>
            /// Hexadecimal number style index.
            /// </summary>
            public const int HexNumber = NativeMethods.SCE_B_HEXNUMBER;

            /// <summary>
            /// Binary number style index.
            /// </summary>
            public const int BinNumber = NativeMethods.SCE_B_BINNUMBER;

            /// <summary>
            /// Block comment style index.
            /// </summary>
            public const int CommentBlock = NativeMethods.SCE_B_COMMENTBLOCK;

            /// <summary>
            /// Documentation line style index.
            /// </summary>
            public const int DocLine = NativeMethods.SCE_B_DOCLINE;

            /// <summary>
            /// Documentation block style index.
            /// </summary>
            public const int DocBlock = NativeMethods.SCE_B_DOCBLOCK;

            /// <summary>
            /// Documentation keyword style index.
            /// </summary>
            public const int DocKeyword = NativeMethods.SCE_B_DOCKEYWORD;
        }

        #endregion VbScript

        #region Verilog

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Verilog" /> lexer.
        /// </summary>
        public static class Verilog
        {
            /// <summary>
            /// Default (whitespace) style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_V_DEFAULT;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_V_COMMENT;

            /// <summary>
            /// Comment line style index.
            /// </summary>
            public const int CommentLine = NativeMethods.SCE_V_COMMENTLINE;

            /// <summary>
            /// Comment line bang (exclamation) style index.
            /// </summary>
            public const int CommentLineBang = NativeMethods.SCE_V_COMMENTLINEBANG;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_V_NUMBER;

            /// <summary>
            /// Keyword (set 0) style index.
            /// </summary>
            public const int Word = NativeMethods.SCE_V_WORD;

            /// <summary>
            /// String style index.
            /// </summary>
            public const int String = NativeMethods.SCE_V_STRING;

            /// <summary>
            /// Keyword (set 1) style index.
            /// </summary>
            public const int Word2 = NativeMethods.SCE_V_WORD2;

            /// <summary>
            /// Keyword (set 2) style index.
            /// </summary>
            public const int Word3 = NativeMethods.SCE_V_WORD3;

            /// <summary>
            /// Preprocessor style index.
            /// </summary>
            public const int Preprocessor = NativeMethods.SCE_V_PREPROCESSOR;

            /// <summary>
            /// Operator style index.
            /// </summary>
            public const int Operator = NativeMethods.SCE_V_OPERATOR;

            /// <summary>
            /// Identifier style index.
            /// </summary>
            public const int Identifier = NativeMethods.SCE_V_IDENTIFIER;

            /// <summary>
            /// Unclosed string EOL style index.
            /// </summary>
            public const int StringEol = NativeMethods.SCE_V_STRINGEOL;

            /// <summary>
            /// User word (set 3) style index.
            /// </summary>
            public const int User = NativeMethods.SCE_V_USER;

            /// <summary>
            /// Comment word (set 4) style index.
            /// </summary>
            public const int CommentWord = NativeMethods.SCE_V_COMMENT_WORD;

            /// <summary>
            /// Input style index.
            /// </summary>
            public const int Input = NativeMethods.SCE_V_INPUT;

            /// <summary>
            /// Output style index.
            /// </summary>
            public const int Output = NativeMethods.SCE_V_OUTPUT;

            /// <summary>
            /// In-out style index.
            /// </summary>
            public const int InOut = NativeMethods.SCE_V_INOUT;

            /// <summary>
            /// Port connect style index.
            /// </summary>
            public const int PortConnect = NativeMethods.SCE_V_PORT_CONNECT;
        }

        #endregion Verilog

        #region Xml

        /// <summary>
        /// Style constants for use with the <see cref="Lexer.Xml" /> lexer.
        /// </summary>
        public static class Xml
        {
            /// <summary>
            /// Content style index.
            /// </summary>
            public const int Default = NativeMethods.SCE_H_DEFAULT;

            /// <summary>
            /// Tag style index.
            /// </summary>
            public const int Tag = NativeMethods.SCE_H_TAG;

            /// <summary>
            /// Unknown tag style index.
            /// </summary>
            public const int TagUnknown = NativeMethods.SCE_H_TAGUNKNOWN;

            /// <summary>
            /// Attribute style index.
            /// </summary>
            public const int Attribute = NativeMethods.SCE_H_ATTRIBUTE;

            /// <summary>
            /// Unknown attribute style index.
            /// </summary>
            public const int AttributeUnknown = NativeMethods.SCE_H_ATTRIBUTEUNKNOWN;

            /// <summary>
            /// Number style index.
            /// </summary>
            public const int Number = NativeMethods.SCE_H_NUMBER;

            /// <summary>
            /// Double-quoted string style index.
            /// </summary>
            public const int DoubleString = NativeMethods.SCE_H_DOUBLESTRING;

            /// <summary>
            /// Single-quoted string style index.
            /// </summary>
            public const int SingleString = NativeMethods.SCE_H_SINGLESTRING;

            /// <summary>
            /// Other tag content (not elements or attributes) style index.
            /// </summary>
            public const int Other = NativeMethods.SCE_H_OTHER;

            /// <summary>
            /// Comment style index.
            /// </summary>
            public const int Comment = NativeMethods.SCE_H_COMMENT;

            /// <summary>
            /// Entity ($nnn;) name style index.
            /// </summary>
            public const int Entity = NativeMethods.SCE_H_ENTITY;

            /// <summary>
            /// End-tag style index.
            /// </summary>
            public const int TagEnd = NativeMethods.SCE_H_TAGEND;

            /// <summary>
            /// Start of XML declaration (&lt;?xml&gt;) style index.
            /// </summary>
            public const int XmlStart = NativeMethods.SCE_H_XMLSTART;

            /// <summary>
            /// End of XML declaration (?&gt;) style index.
            /// </summary>
            public const int XmlEnd = NativeMethods.SCE_H_XMLEND;

            /// <summary>
            /// Script tag (&lt;script&gt;) style index.
            /// </summary>
            public const int Script = NativeMethods.SCE_H_SCRIPT;

            /// <summary>
            /// ASP-like script engine block (&lt;%) style index.
            /// </summary>
            public const int Asp = NativeMethods.SCE_H_ASP;

            /// <summary>
            /// ASP-like language declaration (&lt;%@) style index.
            /// </summary>
            public const int AspAt = NativeMethods.SCE_H_ASPAT;

            /// <summary>
            /// CDATA section style index.
            /// </summary>
            public const int CData = NativeMethods.SCE_H_CDATA;

            /// <summary>
            /// Question mark style index.
            /// </summary>
            public const int Question = NativeMethods.SCE_H_QUESTION;

            /// <summary>
            /// Value style index.
            /// </summary>
            public const int Value = NativeMethods.SCE_H_VALUE;

            /// <summary>
            /// Script engine comment (&lt;%--) style index.
            /// </summary>
            public const int XcComment = NativeMethods.SCE_H_XCCOMMENT;
        }

        #endregion Xml
    }
}