Solved

Yet another Pascal to C#

Posted on 2006-10-19
2
1,079 Views
Last Modified: 2011-09-20
ciuly: You might remember our byte array from the other post, 'a'. This is what's being used here.

function deb(b:string):string;
var base: string;
    i, r, j: integer;
    b1, b2, b3, b4: byte;
    i1, i2, i3: byte;
begin
       
 i := 1;
 while i+4<Length(b) do begin
 
   b1 := a[ord(b[i])-20];
   b2 := a[ord(b[i+1])-20];
   b3 := a[ord(b[i+2])-20];
   b4 := a[ord(b[i+3])-20];

    i1 := (b1 shl 2)or(b2 shr 4);
    i2 := ((b2 and $f) shl 4)or(b3 shr 2);
    i3 := ((b3 and 3) shl 6)or(b4);

   //if i1*i2*i3<>0 then                  
   result := result + {'>'+}chr(i1)+chr(i2)+chr(i3);
   //result := result +
   //'|'+ int2str(i1)+','+ int2str(i2)+','+ int2str(i3)+
   //'('+int2str(b1)+','+ int2str(b2)+','+ int2str(b3)+','+int2str(b4)+')';

   inc(i,4);
 end;
end;
0
Comment
Question by:valvet
2 Comments
 
LVL 28

Accepted Solution

by:
2266180 earned 500 total points
ID: 17764205
this should be it:

        public string deb(byte[] a, string b)
        {
            string result = "";
            byte b1,b2,b3,b4;
            int i = 1, i1,i2,i3;
            while (i+4 < b.Length)
            {
                b1 = a[b[i-1]-20];
                b2 = a[b[i]-20];
                b3 = a[b[i+1]-20];
                b4 = a[b[i+2]-20];

                i1 = (b1 << 2) | (b2 >> 4);
                i2 = ((b2 & 0xf) << 4) | (b3 >> 2);
                i3 = ((b3 & 3) << 6) | b4;

                result = result + /*'>'+*/Convert.ToChar(i1)+Convert.ToChar(i2)+Convert.ToChar(i3);
                i = i+4;
            }
            return result;
        }
0
 

Author Comment

by:valvet
ID: 17764242
Excellent job.

Workes like a charm.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

25 Experts available now in Live!

Get 1:1 Help Now