Programming

Hi,

I haven't programed in C in a few years. I have been doing a lot of shell scripting, I.E. not really programming anything heavy.

That said, I have a script that gives hourly usage statistics for our email server. It runs w-a-y to slow as a script for my impatience, and needs to be converted to C. That and some Windows admins have expressed interest in it. Porting to C would be easier to cross compile that a script.

In the shell script I have an output function where I can pass text color, formatting (4.3f, 6s, etc.) and value.
Shell Code

Code:

output{
    printf "\033[$1m%$2\033[0m" $3 
}

Here's what I have in C so far.

Code:

int output(int clr,float val){  // Add in the format if possible
   switch (clr) {
      case 0: printf("%c[%dm %2.3f ", 0x1B, 33, val); // print Yellow (Lower than average usage)
        break;
      case 1: printf("%c[%dm %2.3f ", 0x1B, 32, val); // print Green (Medium)
        break;
      case 2: printf("%c[%dm %2.3f ", 0x1B, 31, val); // print Red  (High)
        break;
      case 3: printf("%c[%dm %2.3f ", 0x1B, 0, val); // print White  (All else)
        break;
    }
}

Is there a way to pass the format parameter as a variable? I.E. pearl uses something like this %${fmt}f. Can this be done in C?

There are 5 columns, each can have their own color, width, format(d,s,f...) and value.
Obviously, the colors won't show up here. But you get the idea.

Code:

Hour Count APM AMBPM  MBytes
----+-----+---+-----+-------
  00   485   8  0.64   38.45
  01   511   9  0.06    3.51
  02   517   9  0.07    4.43
...

It's not a show stopper, but it would save me from having to create routines for every different format.

Any help would be greatly appreciated.

Thank You