You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

24 lines
679 B

#include "fmt.h"
/* "foo" -> "foo "
* append padlen-srclen spaces after dest, if that is >= 0. Truncate
* only if total length is larger than maxlen. Return number of
* characters written. */
size_t fmt_fill(char* dest,size_t srclen,size_t padlen,size_t maxlen) {
long todo;
char* olddest=dest;
char* max=dest+maxlen;
if ((long)padlen<0 || (long)maxlen<0) return 0;
if (srclen>maxlen) return maxlen;
if (dest==0) {
unsigned long sum=srclen>padlen?srclen:padlen;
return sum>maxlen?maxlen:sum;
for (todo=(long)(padlen-srclen); todo>0; --todo) {
if (dest>max) break;
*dest=' '; ++dest;
return (size_t)(dest-olddest);