HunkDel.cs

namespace JLibDiff
{
        using System;
        
        /*
        * The <code>HunkDel</code> class represents a bloc of difference that will
        * be deleted.
        */
        [Serializable]
        public class HunkDel:Hunk
        {
                
                internal int ld1;
                internal int lf1;
                internal int ld2;
                
                internal System.Collections.ArrayList a = new System.Collections.ArrayList();
                
                public override void  accept(HunkVisitor visitor)
                {
                        visitor.visitHunkDel(this);
                }
                
                
                /*
                *  Returns string to delete.
                */
                public virtual System.String getOldContents()
                {
                        System.String s = new System.String("".ToCharArray());
                        //UPGRADE_TODO: The method hasMoreElements has a different behavior in .NET.;
                         for (System.Collections.IEnumerator e = a.GetEnumerator(); e.MoveNext(); )
                        {
                                //UPGRADE_TODO: The method nextElement has a different behavior in .NET.;
                                s = System.String.Concat(s, (System.String) e.Current);
                        }
                        return s;
                }
                
                /*
                *  Returns a string representation of the current hunk
                *  with normal format .
                */
                public override System.String convert()
                {
                        System.String s = new System.String(System.Convert.ToString(ld1).ToCharArray());
                        if (ld1 != lf1)
                                s = System.String.Concat(s, "," + lf1);
                        s = System.String.Concat(s, "d" + ld2 + "\n");
                        //UPGRADE_TODO: The method hasMoreElements has a different behavior in .NET.;
                         for (System.Collections.IEnumerator e = a.GetEnumerator(); e.MoveNext(); )
                        {
                                //UPGRADE_TODO: The method nextElement has a different behavior in .NET.;
                                s = System.String.Concat(s, "< " + (System.String) e.Current);
                        }
                        return s;
                }
                
                /*
                *  Returns a string representation of the current hunk
                *  with ED_script format .
                */
                public override System.String convert_ED()
                {
                        System.String s = new System.String(System.Convert.ToString(ld1).ToCharArray());
                        if (ld1 != lf1)
                                s = System.String.Concat(s, "," + lf1);
                        s = System.String.Concat(s, "d\n");
                        return s;
                }
                
                /*
                *  Returns a string representation of the current hunk
                *  with RCS_script format .
                */
                public override System.String convert_RCS()
                {
                        System.String s = new System.String(("d" + ld1 + " " + (lf1 - ld1 + 1) + "\n").ToCharArray());
                        return s;
                }
                
                /*
                *  Returns the number of low line of file passed in argument .
                *  Lines are inclusif.
                *
                * @param filenum The number of file (the first file '0', or the second '1').
                */
                public override int lowLine(int filenum)
                {
                        if (filenum == 0)
                                return ld1;
                        else
                                return ld2;
                }
                
                /*
                *  Returns the number of high line of file passed in argument .
                *  Lines are inclusif.
                *
                * @param filenum The number of file (the first file '0', or the second '1').
                */
                public override int highLine(int filenum)
                {
                        if (filenum == 0)
                                return lf1;
                        else
                                return ld2;
                }
                
                /*
                *  Returns the number of lines consedered in this hunk and which 
                *  came from file passed in argument .
                *
                * @param filenum The number of file (the first file '0', or the second '1').
                */
                public override int numLines(int filenum)
                {
                        if (filenum == 0)
                                return (lf1 - ld1 + 1);
                        else
                                return 1;
                }
                
                /*
                *  Returns a string representing the line in file and position
                *  passed in argument.
                *
                * @param filenum The number of file (the first file '0', or the second '1').
                * @param linenum the number of line that will be returned.
                */
                public override System.String relNum(int filenum, int linenum)
                {
                        if (filenum == 0)
                                return (System.String) a[linenum];
                        else
                                return null;
                }
        }
}

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