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Full Discussion: Passing printf formatting parameters as variables
Top Forums Programming Passing printf formatting parameters as variables Post 302888834 by Akshay Hegde on Monday 17th of February 2014 03:18:10 PM
Old 02-17-2014
I am just giving small example here, since you said you know programming probably you can experiment and can write your own function, the code you shown doesn't clear color I guess.
Code:
akshay@Aix:~/Desktop$ cat color.c
#include <stdio.h>

/* Following header files are not needed stdio.h is enough 
 #include <stdlib.h>
 #include <string.h> */

#define red     "\x1b[31m"
#define green   "\x1b[32m"
#define yell    "\x1b[33m"
#define blue    "\x1b[34m"
#define magneta "\x1b[35m"
#define cyan    "\x1b[36m"
#define reset   "\x1b[0m"

int main () {
	
        // Your value to be printed
	float testvalue = 125.25; 
      
        // precision
	int prec = 5;  
       
        // number of digits after decimal            
	int dig  = 3;   
       
        // 'f' for float           
	char c = 'f';   

        // this holds your format string...("%s...%f") etc          
	char format[10];  

        // Here we are creating your fmt string         
	sprintf(format, "%%s%%%d.%d%c%%s\n", prec, dig,c);
  	
        // Finally printing with different colors
	printf(format,red,testvalue,reset);
	printf(format,blue,testvalue,reset);
  	
}

Code:
akshay@Aix:~/Desktop$ gcc color.c

Code:
akshay@Aix:~/Desktop$ ./a.out 
125.250
125.250

This User Gave Thanks to Akshay Hegde For This Post:
mph
 

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GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

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SYNOPSIS

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DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

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              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

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              print verbose messages.

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