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// bsn GoldParser .NET Engine
// --------------------------
//
// Copyright 2009, 2010 by Arsène von Wyss - avw@gmx.ch
//
// Development has been supported by Sirius Technologies AG, Basel
//
// Source:
//
// https://bsn-goldparser.googlecode.com/hg/
//
// License:
//
// The library is distributed under the GNU Lesser General Public License:
// http://www.gnu.org/licenses/lgpl.html
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
using System;
using System.Globalization;
namespace bsn.GoldParser.Parser {
/// <summary>
/// A structure holding information about the text position of a specific token.
/// </summary>
public struct LineInfo: IEquatable<LineInfo>, IComparable<LineInfo> {
private readonly int column;
private readonly long index;
private readonly int line;
/// <summary>
/// Initializes a new instance of the <see cref="LineInfo"/> struct.
/// </summary>
/// <param name="index">The character index.</param>
/// <param name="line">The line.</param>
/// <param name="column">The column.</param>
public LineInfo(long index, int line, int column) {
this.line = line;
this.index = index;
this.column = column;
}
/// <summary>
/// Gets the column.
/// </summary>
/// <value>The column.</value>
public int Column {
get {
return column;
}
}
/// <summary>
/// Gets the character index.
/// </summary>
/// <value>The character index.</value>
public long Index {
get {
return index;
}
}
/// <summary>
/// Gets the line.
/// </summary>
/// <value>The line.</value>
public int Line {
get {
return line;
}
}
public override bool Equals(object obj) {
if (ReferenceEquals(null, obj)) {
return false;
}
if (obj.GetType() != typeof(LineInfo)) {
return false;
}
return Equals((LineInfo)obj);
}
public override int GetHashCode() {
unchecked {
return (line*397)^(column*31)^index.GetHashCode();
}
}
public override string ToString() {
return string.Format(CultureInfo.InvariantCulture, "{0}:{1}", line, column);
}
public int CompareTo(LineInfo other) {
return Math.Sign(index-other.index);
}
public bool Equals(LineInfo other) {
return (other.line == line) && (other.column == column) && (other.index == column);
}
}
}
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