Decimal separator

[BCS]

Hello Nrgyzer,

> Hello everyone,
> 
> I'm trying to split an integer into a integer with decimal points (or
> char[] with decimal points). I already know that I can do this with
> std.format.doFormat() but I don't know how I can use this to convert
> my int (for example... 10000) to 10,000.
> 
> I hope anyone can help me :)
> 
> In this case... thanks so much for help
> 

char[] AddCharEvery(char[] str, char c, int i)
{
    if(str.length > i) return AddCharEvery(str[0..$-i],c,i) ~ c ~ str[0..$-i];
    else return str;
}

or


char[] AddCharEvery(char[] str, char c, int i)
{
   if(str.length <= i) return str;

   auto ret = new char[str.length + (str.length-1)/i];

   int at = ret.length;
   while(str.length  > i)
   {
       ret[at-i..at] = str[$-i..$];
       ret[at-i-1] = c;
       at -= (i+1);
       str = str[0..$-i];
   }
   ret[0..at] = str;
   return ret;
}

//example
import std.stdio;
void main()
{
 writef("%s\n", AddCharEvery("100000000000000", ',', 3));
 writef("%s\n", AddCharEvery("10000000000000", ',', 3));
 writef("%s\n", AddCharEvery("1000000000000", ',', 3));
 writef("%s\n", AddCharEvery("100000000000", ',', 3));
}


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<IXOYE><